Azure Blob Storage monitoring data reference

Article
11/05/2024

This article contains all the monitoring reference information for this service.

See Monitor Azure Blob Storage for details on the data you can collect for Azure Blob Storage and how to use it.

Metrics

This section lists all the automatically collected platform metrics for this service. These metrics are also part of the global list of all platform metrics supported in Azure Monitor.

For information on metric retention, see Azure Monitor Metrics overview.

Supported metrics for Microsoft.Storage/storageAccounts

The following table lists the metrics available for the Microsoft.Storage/storageAccounts resource type.

All columns might not be present in every table.
Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

Category - The metrics group or classification.
Metric - The metric display name as it appears in the Azure portal.
Name in REST API - The metric name as referred to in the REST API.
Unit - Unit of measure.
Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
Dimensions - Dimensions available for the metric.
Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category	Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Transaction	Availability The percentage of availability for the storage service or the specified API operation. Availability is calculated by taking the TotalBillableRequests value and dividing it by the number of applicable requests, including those that produced unexpected errors. All unexpected errors result in reduced availability for the storage service or the specified API operation.	`Availability`	Percent	Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`	PT1M	Yes
Transaction	Egress The amount of egress data. This number includes egress to external client from Azure Storage as well as egress within Azure. As a result, this number does not reflect billable egress.	`Egress`	Bytes	Total (Sum), Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`	PT1M	Yes
Transaction	Ingress The amount of ingress data, in bytes. This number includes ingress from an external client into Azure Storage as well as ingress within Azure.	`Ingress`	Bytes	Total (Sum), Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`	PT1M	Yes
Transaction	Success E2E Latency The average end-to-end latency of successful requests made to a storage service or the specified API operation, in milliseconds. This value includes the required processing time within Azure Storage to read the request, send the response, and receive acknowledgment of the response.	`SuccessE2ELatency`	MilliSeconds	Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`	PT1M	Yes
Transaction	Success Server Latency The average time used to process a successful request by Azure Storage. This value does not include the network latency specified in SuccessE2ELatency.	`SuccessServerLatency`	MilliSeconds	Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`	PT1M	Yes
Transaction	Transactions The number of requests made to a storage service or the specified API operation. This number includes successful and failed requests, as well as requests which produced errors. Use ResponseType dimension for the number of different type of response.	`Transactions`	Count	Total (Sum)	`ResponseType`, `GeoType`, `ApiName`, `Authentication`, `TransactionType`	PT1M	Yes
Capacity	Used capacity The amount of storage used by the storage account. For standard storage accounts, it's the sum of capacity used by blob, table, file, and queue. For premium storage accounts and Blob storage accounts, it is the same as BlobCapacity or FileCapacity.	`UsedCapacity`	Bytes	Average	<none>	PT1H	No

Supported metrics for Microsoft.Storage/storageAccounts/blobServices

The following table lists the metrics available for the Microsoft.Storage/storageAccounts/blobServices resource type.

All columns might not be present in every table.
Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

Category - The metrics group or classification.
Metric - The metric display name as it appears in the Azure portal.
Name in REST API - The metric name as referred to in the REST API.
Unit - Unit of measure.
Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
Dimensions - Dimensions available for the metric.
Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category	Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Transaction	Availability The percentage of availability for the storage service or the specified API operation. Availability is calculated by taking the TotalBillableRequests value and dividing it by the number of applicable requests, including those that produced unexpected errors. All unexpected errors result in reduced availability for the storage service or the specified API operation.	`Availability`	Percent	Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`, `Tier`	PT1M	Yes
Capacity	Blob Capacity The amount of storage used by the storage account's Blob service in bytes.	`BlobCapacity`	Bytes	Average	`BlobType`, `Tier`	PT1H	No
Capacity	Blob Count The number of blob objects stored in the storage account.	`BlobCount`	Count	Average	`BlobType`, `Tier`	PT1H	No
Capacity	Blob Provisioned Size The amount of storage provisioned in the storage account's Blob service in bytes.	`BlobProvisionedSize`	Bytes	Average	`BlobType`, `Tier`	PT1H	No
Capacity	Blob Container Count The number of containers in the storage account.	`ContainerCount`	Count	Average	`AccessLevel`	PT1H	Yes
Transaction	Egress The amount of egress data. This number includes egress to external client from Azure Storage as well as egress within Azure. As a result, this number does not reflect billable egress.	`Egress`	Bytes	Total (Sum), Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`, `Tier`	PT1M	Yes
Capacity	Index Capacity The amount of storage used by Azure Data Lake Storage Gen2 hierarchical index.	`IndexCapacity`	Bytes	Average	<none>	PT1H	No
Transaction	Ingress The amount of ingress data, in bytes. This number includes ingress from an external client into Azure Storage as well as ingress within Azure.	`Ingress`	Bytes	Total (Sum), Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`, `Tier`	PT1M	Yes
Transaction	Success E2E Latency The average end-to-end latency of successful requests made to a storage service or the specified API operation, in milliseconds. This value includes the required processing time within Azure Storage to read the request, send the response, and receive acknowledgment of the response.	`SuccessE2ELatency`	MilliSeconds	Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`, `Tier`	PT1M	Yes
Transaction	Success Server Latency The average time used to process a successful request by Azure Storage. This value does not include the network latency specified in SuccessE2ELatency.	`SuccessServerLatency`	MilliSeconds	Average, Minimum, Maximum	`GeoType`, `ApiName`, `Authentication`, `Tier`	PT1M	Yes
Transaction	Transactions The number of requests made to a storage service or the specified API operation. This number includes successful and failed requests, as well as requests which produced errors. Use ResponseType dimension for the number of different type of response.	`Transactions`	Count	Total (Sum)	`ResponseType`, `GeoType`, `ApiName`, `Authentication`, `TransactionType`, `Tier`	PT1M	Yes

Note

The Blob Capacity and Blob Count metric are emitted hourly. A background process computes these metrics and updates them multiple times a day.

Metric dimensions

For information about what metric dimensions are, see Multi-dimensional metrics.

This service has the following dimensions associated with its metrics.

Dimensions available to all storage services

Dimension Name	Description
GeoType	Transaction from Primary or Secondary cluster. The available values include Primary and Secondary. It applies to Read Access Geo Redundant Storage (RA-GRS) when reading objects from a secondary tenant.
ResponseType	Transaction response type. The available values include: ServerOtherError: All other server-side errors except described ones. ServerBusyError: Authenticated request that returned an HTTP 503 status code. ServerTimeoutError: Timed-out authenticated request that returned an HTTP 500 status code. The timeout occurred due to a server error. AuthenticationError: The request couldn't be authenticated by the server. AuthorizationError: Authenticated request that failed due to unauthorized access of data or an authorization failure. NetworkError: Authenticated request that failed due to network errors. Most commonly occurs when a client prematurely closes a connection before timeout expiration. ClientAccountBandwidthThrottlingError: The request is throttled on bandwidth for exceeding storage account scalability limits. ClientAccountRequestThrottlingError: The request is throttled on request rate for exceeding storage account scalability limits. ClientThrottlingError: Other client-side throttling error. `ClientAccountBandwidthThrottlingError` and `ClientAccountRequestThrottlingError` are excluded. ClientShareEgressThrottlingError: Applicable to premium file shares only. Other client-side throttling error. The request failed due to egress bandwidth throttling for exceeding share limits. `ClientAccountBandwidthThrottlingError` is excluded. ClientShareIngressThrottlingError: Applicable to premium file shares only. Other client-side throttling error. The request failed due to ingress bandwidth throttling for exceeding share limits. `ClientAccountBandwidthThrottlingError` is excluded. ClientShareIopsThrottlingError: Other client-side throttling error. The request failed due to IOPS throttling. `ClientAccountRequestThrottlingError` is excluded. ClientTimeoutError: Timed-out authenticated request that returned an HTTP 500 status code. If the client's network timeout or the request timeout is set to a lower value than expected by the storage service, it's an expected timeout. Otherwise, it's reported as a `ServerTimeoutError`. ClientOtherError: All other client-side errors except described ones. Success: Successful request SuccessWithThrottling: Successful request when an SMB client gets throttled in the first attempt(s) but succeeds after retries. SuccessWithShareEgressThrottling: Applicable to premium file shares only. Successful request when an SMB client gets throttled due to egress bandwidth throttling in the first attempt or attempts, but succeeds after retries. SuccessWithShareIngressThrottling: Applicable to premium file shares only. Successful request when an SMB client gets throttled due to ingress bandwidth throttling in the first attempt or attempts, but succeeds after retries. SuccessWithShareIopsThrottling: Successful request when an SMB client gets throttled due to IOPS throttling in the first attempt(s) but succeeds after retries. SuccessWithMetadataWarning: Applicable to file shares only. Successful request when a client runs high metadata IOPS, which may cause throttling later if the IOPS remain high or increase. SuccessWithMetadataThrottling: Applicable to file shares only. Successful request when a client gets throttled due to high metadata IOPS in the first attempt or attempts, but succeeds after retries.
ApiName	The name of operation. If a failure occurs before the name of the operation is identified, the name appears as "Unknown." You can use the value of the `ResponseType` dimension to learn more about the failure.
Authentication	Authentication type used in transactions. The available values include: AccountKey: The transaction is authenticated with storage account key. SAS: The transaction is authenticated with service/account shared access signatures. DelegationSas: The transaction is authenticated with user-delegation SAS. OAuth: The transaction is authenticated with OAuth access tokens. Anonymous: The transaction is requested anonymously. It doesn’t include preflight requests. AnonymousPreflight: The transaction is preflight request.
TransactionType	Type of transaction. The available values include: User: The transaction was made by customer. System: The transaction was made by system process.

Dimensions specific to Blob storage

Dimension Name	Description
BlobType	The type of blob for Blob metrics only. The supported values are BlockBlob, PageBlob, and Azure Data Lake Storage. Append blobs are included in BlockBlob.
Tier	Azure storage offers different access tiers, which allow you to store blob object data in the most cost-effective manner. See more in Azure Storage blob tier. The supported values include: Hot: Hot tier Cool: Cool tier Cold: Cold tier Archive: Archive tier Premium: Premium tier for block blob P4/P6/P10/P15/P20/P30/P40/P50/P60: Tier types for premium page blob Standard: Tier type for standard page Blob Untiered: Tier type for general purpose v1 storage account

Dimension Name

Description

BlobType

The type of blob for Blob metrics only. The supported values are BlockBlob, PageBlob, and Azure Data Lake Storage. Append blobs are included in BlockBlob.

Tier

Azure storage offers different access tiers, which allow you to store blob object data in the most cost-effective manner. See more in Azure Storage blob tier. The supported values include:

Hot: Hot tier
Cool: Cool tier
Cold: Cold tier
Archive: Archive tier
Premium: Premium tier for block blob
P4/P6/P10/P15/P20/P30/P40/P50/P60: Tier types for premium page blob
Standard: Tier type for standard page Blob
Untiered: Tier type for general purpose v1 storage account

For the metrics supporting dimensions, you need to specify the dimension value to see the corresponding metrics values. For example, if you look at Transactions value for successful responses, you need to filter the ResponseType dimension with Success. If you look at BlobCount value for Block Blob, you need to filter the BlobType dimension with BlockBlob.

Resource logs

This section lists the types of resource logs you can collect for this service. The section pulls from the list of all resource logs category types supported in Azure Monitor.

Supported resource logs for Microsoft.Storage/storageAccounts/blobServices

Category	Category display name	Log table	Supports basic log plan	Supports ingestion-time transformation	Example queries	Costs to export
`StorageDelete`	Storage Delete	StorageBlobLogs Storage Blob Service Logs Schema	Yes	Yes	Queries	Yes
`StorageRead`	Storage Read	StorageBlobLogs Storage Blob Service Logs Schema	Yes	Yes	Queries	Yes
`StorageWrite`	Storage Write	StorageBlobLogs Storage Blob Service Logs Schema	Yes	Yes	Queries	Yes

Azure Monitor Logs tables

This section lists the Azure Monitor Logs tables relevant to this service, which are available for query by Log Analytics using Kusto queries. The tables contain resource log data and possibly more depending on what is collected and routed to them.

The following sections describe the properties for Azure Storage resource logs when they're collected in Azure Monitor Logs or Azure Storage. The properties describe the operation, the service, and the type of authorization that was used to perform the operation.

Note

The field names listed in each section below are valid when resource logs are sent to Azure storage or to an event hub. When the logs are sent to a Log Analytics workspace, the field names might be different.

Fields that describe the operation

{
    "time": "2019-02-28T19:10:21.2123117Z",
    "resourceId": "/subscriptions/00001111-aaaa-2222-bbbb-3333cccc4444/resourceGroups/mytestrp/providers/Microsoft.Storage/storageAccounts/testaccount1/blobServices/default",
    "category": "StorageWrite",
    "operationName": "PutBlob",
    "operationVersion": "2017-04-17",
    "schemaVersion": "1.0",
    "statusCode": 201,
    "statusText": "Success",
    "durationMs": 5,
    "callerIpAddress": "192.168.0.1:11111",
    "correlationId": "aaaa0000-bb11-2222-33cc-444444dddddd",
    "location": "uswestcentral",
    "uri": "http://mystorageaccount.blob.core.windows.net/cont1/blobname?timeout=10"
}

Property	Description
time	The Universal Time Coordinated (UTC) time when the request was received by storage. For example: `2018/11/08 21:09:36.6900118`.
resourceId	The resource ID of the storage account. For example: `/subscriptions/aaaa0a0a-bb1b-cc2c-dd3d-eeeeee4e4e4e/resourceGroups/` `myresourcegroup/providers/Microsoft.Storage/storageAccounts/mystorageaccount/storageAccounts/blobServices/default`
category	The category of the requested operation. For example: `StorageRead`, `StorageWrite`, or `StorageDelete`.
operationName	The type of REST operation that was performed. For a complete list of operations, see Storage Analytics Logged Operations and Status Messages topic.
operationVersion	The storage service version that was specified when the request was made. This is equivalent to the value of the x-ms-version header. For example: `2017-04-17`.
schemaVersion	The schema version of the log. For example: `1.0`.
statusCode	The HTTP or SMB status code for the request. If the HTTP request is interrupted, this value might be set to `Unknown`. For example: `206`
statusText	The status of the requested operation. For a complete list of status messages, see Storage Analytics Logged Operations and Status Messages topic. In version 2017-04-17 and later, the status message `ClientOtherError` isn't used. Instead, this field contains an error code. For example: `SASSuccess`
durationMs	The total time, expressed in milliseconds, to perform the requested operation. This includes the time to read the incoming request, and to send the response to the requester. For example: `12`.
callerIpAddress	The IP address of the requester, including the port number. For example: `192.100.0.102:4362`.
correlationId	The ID that is used to correlate logs across resources. For example: `aaaa0000-bb11-2222-33cc-444444dddddd`.
location	The location of storage account. For example: `North Europe`.
protocol	The protocol that is used in the operation. For example: `HTTP`, `HTTPS`, `SMB`, or `NFS`
uri	Uniform resource identifier that is requested.

Fields that describe how the operation was authenticated

{
    "identity": {
        "authorization": [
            {
                "action": "Microsoft.Storage/storageAccounts/blobServices/containers/blobs/read",
                "denyAssignmentId": "aaaa0000-bb11-2222-33cc-444444dddddd",
                "principals": [
                    {
                        "id": "aaaaaaaa-bbbb-cccc-1111-222222222222",
                        "type": "User"
                    }
                ],
                "reason": "Policy",
                "result": "Granted",
                "roleAssignmentId": "00aa00aa-bb11-cc22-dd33-44ee44ee44ee",
                "roleDefinitionId": "11bb11bb-cc22-dd33-ee44-55ff55ff55ff",
                "type": "RBAC"
            }
        ],
        "properties": {
            "metricResponseType": "Success",
            "objectKey": "/samplestorageaccount/samplecontainer/sampleblob.png"
           },
        "requester": {
            "appId": "00001111-aaaa-2222-bbbb-3333cccc4444",
            "audience": "https://storage.azure.com/",
            "objectId": "aaaaaaaa-0000-1111-2222-bbbbbbbbbbbb",
            "tenantId": "aaaabbbb-0000-cccc-1111-dddd2222eeee",
            "tokenIssuer": "https://sts.windows.net/2c2c2c2c-3333-dddd-4444-5e5e5e5e5e5e",
            "uniqueName": "someone@example.com"
           },
        "delegatedResource": {
            "tenantId": "aaaabbbb-0000-cccc-1111-dddd2222eeee",
            "resourceId": "a0a0a0a0-bbbb-cccc-dddd-e1e1e1e1e1e1",
            "objectId": "a0a0a0a0-bbbb-cccc-dddd-e1e1e1e1e1e1"
          },
        "type": "OAuth"
    },
}

Property	Description
identity / type	The type of authentication that was used to make the request. For example: `OAuth`, `Kerberos`, `SAS Key`, `Account Key`, or `Anonymous`
identity / tokenHash	The SHA-256 hash of the authentication token used on the request. When the authentication type is `Account Key`, the format is "key1 \| key2 (SHA256 hash of the key)". For example: `key1(5RTE343A6FEB12342672AFD40072B70D4A91BGH5CDF797EC56BF82B2C3635CE)`. When authentication type is `SAS Key`, the format is "key1 \| key2 (SHA 256 hash of the key),SasSignature(SHA 256 hash of the SAS token)". For example: `key1(0A0XE8AADA354H19722ED12342443F0DC8FAF3E6GF8C8AD805DE6D563E0E5F8A),SasSignature(04D64C2B3A704145C9F1664F201123467A74D72DA72751A9137DDAA732FA03CF)`. When authentication type is `OAuth`, the format is "SHA 256 hash of the OAuth token". For example: `B3CC9D5C64B3351573D806751312317FE4E910877E7CBAFA9D95E0BE923DD25C` For other authentication types, there is no tokenHash field.
authorization / action	The action that is assigned to the request.
authorization / denyAssignmentId	The date in GUID format when access was denied by a deny assignment. The deny assignment might be from Azure Blueprints or a managed application. For more information on deny assignments, see Understand Azure deny assignments
authorization / reason	The reason for the authorization result of the request. For example: `Policy`, `NoApplicablePolicy`, or `MissingAttributes`
authorization / result	The authorization result of the request. For example: `Granted` or `Denied`
authorization / roleAssignmentId	The role assignment ID. For example: `11bb11bb-cc22-dd33-ee44-55ff55ff55ff`.
authorization / roleDefinitionId	The role definition ID. For example: `00aa00aa-bb11-cc22-dd33-44ee44ee44ee`.
authorization / type	The source of the authorization result for the request. For example: `RBAC` or `ABAC`
principals / id	The ID of the security principal. For example: `a4711f3a-254f-4cfb-8a2d-111111111111`.
principals / type	The type of security principal. For example: `ServicePrincipal`.
properties / metricResponseType	The response from the metrics transaction. For examples, see the ResponseType metrics dimension for your storage service: blobs files queues tables
properties / objectKey	The path to the object being accessed. For example: `samplestorageaccount/container1/blob.png`.
requester / appID	The Open Authorization (OAuth) application ID that is used as the requester. For example: `00001111-aaaa-2222-bbbb-3333cccc4444`.
requester / audience	The OAuth audience of the request. For example: `https://storage.azure.com`.
requester / objectId	The OAuth object ID of the requester. In case of Kerberos authentication, represents the object identifier of Kerberos authenticated user. For example: `aaaaaaaa-0000-1111-2222-bbbbbbbbbbbb`.
requester / tenantId	The OAuth tenant ID of identity. For example: `aaaabbbb-0000-cccc-1111-dddd2222eeee`.
requester / tokenIssuer	The OAuth token issuer. For example: `https://sts.windows.net/aaaabbbb-0000-cccc-1111-dddd2222eeee/`.
requester / upn	The User Principal Name (UPN) of requestor. For example: `someone@contoso.com`.
requester / userName	This field is reserved for internal use only.
requester / uniqueName	The unique name of the requester. For example: `someone@example.com`.
delegatedResource / tenantId	The Microsoft Entra tenant ID of the Azure resource ID which accesses storage on-behalf-of the storage resource owner (for example: `aaaabbbb-0000-cccc-1111-dddd2222eeee`).
delegatedResource / resourceId	The Azure resource ID which accesses storage on behalf of the storage resource owner (for example: `/subscriptions/<sub>/resourcegroups/<rg>/providers/Microsoft.Compute/virtualMachines/<vm-name>`)
delegatedResource / objectId	The Microsoft Entra object ID of the Azure resource ID which accesses storage on behalf of the storage resource owner (for example: `aaaaaaaa-0000-1111-2222-bbbbbbbbbbbb`).

Fields that describe the service

{
    "properties": {
        "accountName": "contoso",
        "requestUrl": "https://contoso.blob.core.windows.net:443/upload?restype=container&comp=list&prefix=&delimiter=/&marker=&maxresults=30&include=metadata&_=1551405598426",
        "userAgentHeader": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134",
        "referrerHeader": "blob:https://portal.azure.com/00001111-aaaa-2222-bbbb-3333cccc4444",
        "clientRequestId": "",
        "etag": "",
        "serverLatencyMs": 63,
        "serviceType": "blob",
        "operationCount": 0,
        "requestHeaderSize": 2658,
        "requestBodySize": 0,
        "responseHeaderSize": 295,
        "responseBodySize": 2018,
        "contentLengthHeader": 0,
        "requestMd5": "",
        "serverMd5": "",
        "lastModifiedTime": "",
        "conditionsUsed": "",
        "smbTreeConnectID" : "0x3",
        "smbPersistentHandleID" : "0x6003f",
        "smbVolatileHandleID" : "0xFFFFFFFF00000065",
        "smbMessageID" : "0x3b165",
        "smbCreditsConsumed" : "0x3",
        "smbCommandDetail" : "0x2000 bytes at offset 0xf2000",
        "smbFileId" : " 0x9223442405598953",
        "smbSessionID" : "0x8530280128000049",
        "smbCommandMajor" : "0x6",
        "smbCommandMinor" : "DirectoryCloseAndDelete",
        "downloadRange" : "bytes=4-4194307",
        "accessTier": "None",
        "sourceAccessTier": "Hot",
        "rehydratePriority":"High"
    }
}

Property	Description
accountName	The name of the storage account. For example: `mystorageaccount`.
requestUrl	The URL that is requested.
userAgentHeader	The User-Agent header value, in quotes. For example: `WA-Storage/6.2.0 (.NET CLR 4.0.30319.42000; Win32NT 6.2.9200.0)`.
referrerHeader	The Referrer header value. For example: `http://contoso.com/about.html`.
clientRequestId	The x-ms-client-request-id header value of the request. For example: `360b66a6-ad4f-4c4a-84a4-0ad7cb44f7a6`.
etag	The ETag identifier for the returned object, in quotes. For example: `0x8D101F7E4B662C4`.
serverLatencyMs	The total time expressed in milliseconds to perform the requested operation. This value doesn't include network latency (the time to read the incoming request and send the response to the requester). For example: `22`.
serviceType	The service associated with this request. For example: `blob`, `table`, `files`, or `queue`.
operationCount	The number of each logged operation that is involved in the request. This count starts with an index of `0`. Some requests require more than one operation. Most requests perform only one operation. For example: `1`.
requestHeaderSize	The size of the request header expressed in bytes. For example: `578`. If a request is unsuccessful, this value might be empty.
requestBodySize	The size of the request packets, expressed in bytes, that are read by the storage service. For example: `0`. If a request is unsuccessful, this value might be empty.
responseHeaderSize	The size of the response header expressed in bytes. For example: `216`. If a request is unsuccessful, this value might be empty.
responseBodySize	The size of the response packets written by the storage service, in bytes. If a request is unsuccessful, this value may be empty. For example: `216`.
requestMd5	The value of either the Content-MD5 header or the x-ms-content-md5 header in the request. The MD5 hash value specified in this field represents the content in the request. For example: `788815fd0198be0d275ad329cafd1830`. This field can be empty.
serverMd5	The value of the MD5 hash calculated by the storage service. For example: `3228b3cf1069a5489b298446321f8521`. This field can be empty.
lastModifiedTime	The Last Modified Time (LMT) for the returned object. For example: `Tuesday, 09-Aug-11 21:13:26 GMT`. This field is empty for operations that can return multiple objects.
conditionsUsed	A semicolon-separated list of key-value pairs that represent a condition. The conditions can be any of the following: If-Modified-Since If-Unmodified-Since If-Match If-None-Match For example: `If-Modified-Since=Friday, 05-Aug-11 19:11:54 GMT`.
contentLengthHeader	The value of the Content-Length header for the request sent to the storage service. If the request was successful, this value is equal to requestBodySize. If a request is unsuccessful, this value may not be equal to requestBodySize, or it might be empty.
tlsVersion	The TLS version used in the connection of request. For example: `TLS 1.2`.
smbTreeConnectID	The Server Message Block (SMB) treeConnectId established at tree connect time. For example: `0x3`
smbPersistentHandleID	Persistent handle ID from an SMB2 CREATE request that survives network reconnects. Referenced in MS-SMB2 2.2.14.1 as SMB2_FILEID.Persistent. For example: `0x6003f`
smbVolatileHandleID	Volatile handle ID from an SMB2 CREATE request that is recycled on network reconnects. Referenced in MS-SMB2 2.2.14.1 as SMB2_FILEID.Volatile. For example: `0xFFFFFFFF00000065`
smbMessageID	The connection relative MessageId. For example: `0x3b165`
smbCreditsConsumed	The ingress or egress consumed by the request, in units of 64k. For example: `0x3`
smbCommandDetail	More information about this specific request rather than the general type of request. For example: `0x2000 bytes at offset 0xf2000`
smbFileId	The FileId associated with the file or directory. Roughly analogous to an NTFS FileId. For example: `0x9223442405598953`
smbSessionID	The SMB2 SessionId established at session setup time. For example: `0x8530280128000049`
smbCommandMajor uint32	Value in the SMB2_HEADER.Command. Currently, this is a number between 0 and 18 inclusive. For example: `0x6`
smbCommandMinor	The subclass of SmbCommandMajor, where appropriate. For example: `DirectoryCloseAndDelete`
accessTier	The access tier of an existing blob when an operation such as `GetBlob` or `GetBlobProperties` is used (for example: `Hot`). Can also be the access tier provided in the `x-ms-access-tier` header for operations such as `SetBlobTier`, `PutBlob`, `PutBlockList`, or `CopyBlob`.
sourceAccessTier	The access tier of the source blob of a copy operation (for example: `Hot`).
rehydrationPriority	The priority used to rehydrate an archived blob (for example: `High` or `Standard`).
downloadRange	Indicates that only a part of the blob (the specified byte range) was requested and transferred. For example, if the value of `downloadRange` field is `bytes=0-1023`, then the request retrieved the first `1024` bytes of the blob (from byte offset 0 to 1023).

Activity log

The linked table lists the operations that can be recorded in the activity log for this service. These operations are a subset of all the possible resource provider operations in the activity log.

For more information on the schema of activity log entries, see Activity Log schema.

Microsoft.Storage resource provider operations

See Monitor Azure Blob Storage for a description of monitoring Azure Blob Storage.
See Monitor Azure resources with Azure Monitor for details on monitoring Azure resources.
See Metrics and logs FAQ for frequently asked questions and answers.

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Azure Blob Storage monitoring data reference

Metrics

Supported metrics for Microsoft.Storage/storageAccounts

Supported metrics for Microsoft.Storage/storageAccounts/blobServices

Metric dimensions

Dimensions available to all storage services

Dimensions specific to Blob storage

Resource logs

Supported resource logs for Microsoft.Storage/storageAccounts/blobServices

Azure Monitor Logs tables

Fields that describe the operation

Fields that describe how the operation was authenticated

Fields that describe the service

Activity log

Feedback

Additional resources

Share via

Azure Blob Storage monitoring data reference

Metrics

Supported metrics for Microsoft.Storage/storageAccounts

Supported metrics for Microsoft.Storage/storageAccounts/blobServices

Metric dimensions

Dimensions available to all storage services

Dimensions specific to Blob storage

Resource logs

Supported resource logs for Microsoft.Storage/storageAccounts/blobServices

Azure Monitor Logs tables

Fields that describe the operation

Fields that describe how the operation was authenticated

Fields that describe the service

Activity log

Related content

Feedback

Additional resources