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Chapter 5 Volume Management
5.2 Functions in the Action Area for Volume
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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The following can be also determined as sequential access:
- A sequential access that does not have successive LBAs and skips some addresses
- A sequential access that issues multiple host I/Os at the same time and is unable to be received
in the order of LBAs
A larger SDS may cause random access to be determined as sequential access, resulting in reduced
performance due to incorrect prefetching.
→ A confirmation screen appears.
3 Click the [OK] button.
→ The cache parameter modification starts.
4 Click the [Done] button to return to the screen when starting this function in Step 1.
End of procedure
The setting values that are available for Multi Writeback Count vary depending on the RAID type
and drive configuration. Refer to "E.2 Input Conditions for MWC" (page 1007)
for details.
If the [Default] button is clicked before the [Modify] button, the default cache parameters are
restored.