Block storage copy data resources
See information about the capacity, space usage, and relationships of block storage systems and how the copy data resources are used for primary and copied data.
The detailed information on the different ways a storage system is involved in remote relationships and how copying data uses resources is shown in the following tabs:
Summary
The summary tab shows how much storage is used for primary, copies of local data and remote data. It also shows the data on the source storage server that is not copied to a target storage server.
- Primary data
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The total amount of source data on the device, including replicated and non-replicated capacity.
- Synchronous
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The total amount of source data in a stand-alone metro mirror relationship.
- Protected Locally
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The volume capacity that is protected by FlashCopy, VDisk mirror, or Safeguarded Copy.
- Multi Target Synchronous
- The total amount of source data in a multi-target Metro Mirror relationship.
- Synchronous and Asynchronous
- The combined source data in a metro mirror and global copy or global mirror relationship.
- Asynchronous
- The total amount of source data in a stand-alone global copy or global mirror relationship.
- Multi Target Asynchronous
- The total amount of source data in a multi-target global copy or global mirror relationship.
- Not protected
- The total amount of source data that is not in a remote replication relationship.
- Copies of local data
- The total amount of target capacity that is used for storing volume backups in flashcopy, VDisk mirror, and safeguarded copy.
- FlashCopy Provisioned Capacity
- Total data capacity that is provisioned for FlashCopy.
- FlashCopy Used Capacity
- The total data capacity that is targeted in a flashCopy relationship.
- Safeguarded Copy
- The total amount of capacity that is used to store volume backups that are created by Safeguarded Copy.
- Copies of remote data
- The data that is targeted in a remote replication relationship.
- Synchronous
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The total amount of data that is targeted in a metro mirror relationship.
- Synchronous cascaded
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The total amount of data that is targeted in a metro mirror relationship and is a source for global copy or global mirror.
- Asynchronous
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The total amount of data that is targeted in a global copy or global mirror relationship.
- Asynchronous cascaded
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The total amount of data that is targeted in a global copy or global mirror relationship and is a source for global copy or global mirror.
Remote Relationships
Synchronous relationship
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Host writes are delayed until the source receives confirmation that the data is written to the target volume.
Asynchronous relationship
- Host writes can continue while data is being written to the target volume.
Standard volume
- A volume that is not thin-provisioned, compressed, encrypted, or encrypt-able.
Thin provisioned volume
- The volume is only allocated the required amount of server space as required.
Compressed VDisk volume
- Data is compressed as it is written to the VDisk.
- Name
- Indicates the name of the remote relationship.
- Status
- Type
- Replication Type
- Source - Target Volume
- Consistency Group
- Source - Target Pool
- Source - Target Storage System
- Source - Target Tier
- Source - Target Host
- Cycle Period (sec)
Consistency Groups
Details the status and type of the consistency group, the number of relationships that exist in the group, and when metadata was last collected for the consistency group.
- Name
- Indicates the name of the consistency group.
- Status
- Source - Target Storage System
- Type
- # Relationships
- Last Data Collections
FlashCopy
Details the information on the last FlashCopy® operation between each source and target storage system.
- Name
- Indicates the name of the Flashcopy.
- Source - Target Volume
- Consistency Group
- Status
- Type
- Source Allocated (GiB)
- Indicates the capacity that is used by the source volume. For thin-provisioned volumes, the capacity that is used by the volume is less than the provisioned capacity of the volume.
- Target Allocated (GiB)
- Indicates the capacity that is used by the target volume. For thin-provisioned volumes, the capacity that is used by the volume is less than the provisioned capacity of the volume.
- Source Target - Host
- Source Target - Pool
- Source Target - Tier
- Last Flashed
VDisk Mirrors
Details the information on the volumes, pools, tiers, and synchronization status of the VDisk mirrors.
- Source - Target Volume
- Status
- Source Target - Pool
- Source Target - Tier
- Synchronized
- Synchronization Rate
Safeguarded Copy
The Safeguarded Copy tab shows the volumes that are protected by the Safeguarded Copy feature in DS8000. You can view the pool that the backup copies of a volume are written to and the amount of capacity that is used to store volume backups.
HyperSwap
Details the information on the status of the master and auxiliary volumes, pools, and tiers of the HyperSwap® relationships.
- Name
- Indicates the name of the HyperSwap..
- Storage System
- Status
- Source - Target Volume
- Consistency Group
- Source - Target Pool
Unprotected Volumes
Details the information on the volumes that are not backed up.
- Name
- Indicates the name of the unprotected volume.
- Pool
- Storage System
- Status
- Copy ID
- Indicates the identifier of the volume copy. For volumes in a mirrored volume relationship, the copy ID distinguishes between the primary and secondary volume copies.
- Acknowledged
- ID
- Unique ID
- Capacity (GiB)
- Indicates the capacity that is committed to the volume, which might include overhead capacity if the disks for the pool are not formatted. For thin-provisioned volumes, capacity represents provisioned capacity of the volume. For XIV system and IBM Storage Accalerate, capacity represents physical or 'hard' capacity of the volume.
- Thin Provisioned
- Used Capacity (%)
- Indicates the percentage of the capacity of the volume that is physically allocated. The capacity that is physically allocated to a thin-provisioned volume might be less than the capacity of the volume. For compressed or deduplicated volumes, this value never reaches 100% even when the provisioned capacity of the volume is fully used.
- Threat Detection Timestamp
- Used Capacity (GiB)
- Indicates the capacity that is used by the volumes. For thin-provisioned volumes, the capacity that is used by the volumes might be less than the provisioned capacity of the volume.
- Available Capacity (GiB)
- Virtual Volume ID
- Written Capacity (%)
- Indicates the percentage of volume capacity that is written by the assigned the host. The physical and virtual allocation percentages are different when the data reduction reduces the that is required to store the written data. Available for FlashSystem A9000, FlashSystem A9000R, XIV storage systems, and resources that run IBM Storage Virtualize.
- Written Capacity (GiB)
- The amount of data that is written from the assigned hosts to the volume before that data is compressed or deduplicated.
- Shortfall (%)
- RAID Level
- Node
- I/O Group
- Hosts
- Encryption
- Formatted
- Virtual Disk Type
- Fast Write State
- VDisk Mirror Copies
- FlashCopy
- Copy Service Role
- Safeguarded
- Safeguarded Location
- Safeguarded Capacity (GiB)
- Storage Virtualizer
- Virtulazier Disk
- Deduplicated
- Compressed
- Compression Savings (%)
- Reserved Volume Capacity (GiB)
- Grain Size (KiB)
- Warning Level (%)
- Auto Expand
- Easy Tier
- Easy Tier Status
- SCM Capacity (GiB)
- SCM Capacity (%)
- Tier 0 Flash Capacity (GiB)
- Tier 0 Flash Capacity (%)
- Tier 1 Flash Capacity (GiB)
- Tier 1 Flash Capacity (%)
- Enterprise HDD Capacity (GiB)
- Enterprise HDD Capacity (%)
- Nearline HDD Capacity (GiB)
- Nearline HDD Capacity (%)
- Tier Distribution (%)
- Indicates the distribution of the volume extents across the Easy Tier drive classes.
- Last Data Collection
- VDisk Mirror Role
- Volume Group
IP Replication
IP Replication tab details the information on the aggregated IP replication workload between the viewed storage system and any remote partner storage system. The three charts on the tab provide you the information on the following metrics.
- IP Replication Latency
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IP Replication Latency: Average round-trip time for the IP partnership link since the last statistics collection period.
- IP Replication-to-Remote Node-Send Data Rate and IP Replication-to-Remote Node-Re-send Data Rate
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Average number of MiB per second that are transferred to other nodes in other clusters by the IP partnership driver.
- IP Replication-to-Remote Node-Receive Data Rate
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Average number of MiB per second that are received from other nodes in other clusters by the IP partnership driver.
Replication Policies
In IBM Storage Insights, the newly added Replication Policies tab that is accessible in the Copy Data section, offers a system-level overview of replication policies and their associated information. The Replication Policies information enhances the understanding of data replication configurations.
The Replication Policies tab shows the following information:
- Name
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Indicates the name of the replication policy.
- ID
-
Indicates the ID of the replication policy.
- Location 1 System
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Indicates the location number 1 for the local system in the replication policy.
- Replication Topology
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It represents organization of the systems and the type of replication performed between each location, that is, how the data is replicated between the locations.
- Location 2 System
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Indicates the location number 2 for the local system in the replication policy.
- RPO
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Indicates the RPO alert threshold time (in minutes) for the replication policy.
- Volume Group
- Indicates the number of volume groups that are associated with this replication policy.
Volume Snapshot
In IBM Storage Insights Copy Data, you can take volume snapshots at the system level.
The following information shows about the Volume Snapshots View:
- Name
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Indicates the name of the snapshot.
- State
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The state of the snapshot. Valid values are listed.
- Volume
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Indicates the name of the parent volume.
- Volume Group
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A volume group is a container for managing a set of related volumes as a single object. The volume group provides consistency across all volumes in the group. View the information that is shown about volumes in block storage systems.
- Safeguarded
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The capacity that is consumed by all of the Safeguarded Copies for a source volume in IBM Storage Virtualize and DS8000. This value applies only to volumes that are the source in a Safeguarded Copy relationship.
- Time Created
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The time range is dynamically calculated based on the metrics created that are shown on the chart.
- Security Status
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In IBM Storage Insights Pro, this field registers if an alert for ransomware threat detection has been triggered.
- Threat Detection Time
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In IBM Storage Insights Pro, corresponds to the date and time when the alert for ransomware threat detection was registered.
- Expiring In
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The status displays the number of days, hour, minutes left for the service to expire.
- Written Capacity
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The amount of usable capacity that would have been used to store written data in a pool or system if data reduction was not applied.
Volume Group Snapshot
In IBM Storage Insights for Copy Data, you can take group snapshots at the system level, extending beyond the previous ability to capture snapshots of the single volume group.
The following information show about the Replication Policies.
- Name
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Indicates the name of the volume group.
- State
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The state of the fileset. Valid values are listed.
- Volume group
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A volume group is a container for managing a set of related volumes as a single object. The volume group provides consistency across all volumes in the group. View the information that is shown about volumes in block storage systems.
- Safeguarded
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The capacity that is consumed by all of the Safeguarded Copies for a source volume in IBM Storage Virtualize and DS8000. This value applies only to volumes that are the source in a Safeguarded Copy relationship.
- Time Created
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The time range is dynamically calculated based on the metrics created that are shown on the chart.
- Expiring In
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The status displays the number of days, hour, minutes left for the service to expire.
- Provisioned Capacity
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A thin provisioned volume is a volume with a provisioned capacity that is different from its real capacity.
- Written Capacity
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The amount of usable capacity that would have been used to store written data in a pool or system if data reduction was not applied.