The following table lists open-system volume types and indicates whether the volume type is available for storing user data depending on the volume type and settings.
Note:
"User data" refers to data written from the host and data that can be read. For example:
- Example 1: Data that a database application stores on the storage system
- Example 2: Data backed up from the data in Example 1 by using software such as ShadowImage, Thin Image Advanced, TrueCopy, Universal Replicator, or global-active device
- Example 3: Data migrated from the data in Example 1 by using software such as Volume Migration
Data used for managing the storage system is not included in user data. For example:
- Example 1: Journal data of Universal Replicator
- Example 2: Metadata of capacity saving
|
Volume type |
Setting for a parity group or Dynamic Provisioning |
Data direct mapping setting |
Drive type in a parity group or a pool |
Available for storing user data? |
|---|---|---|---|---|
|
Volume created in a parity group |
Not available |
Not available |
SSD (QLC) |
Not available1 |
|
SSD (TLC) |
||||
|
DP-VOL |
DRS-VOL2 |
Not available |
SSD (QLC) |
Available |
|
SSD (TLC) |
||||
|
A V-VOL with capacity saving disabled |
Enabled |
SSD (QLC) |
Available |
|
|
SSD (TLC) |
||||
|
Disabled |
SSD (QLC) |
Not available1 | ||
|
SSD (TLC) |
||||
Note:
|
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