7 troubleshooting, Troubleshooting vll, Troubleshooting thin provisioning – HP XP P9500 Storage User Manual

Page 164

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7 Troubleshooting

Information is provided here for troubleshooting problems you may have when provisioning your
storage system.

If a failure occurs while your operating and a message appears, see the HP P9000 Remote Web
Console Messages
.for further instructions.

For problems and solutions regarding to using Remote Web Console, see the HP P9000 Remote
Web Console User Guide
.

Troubleshooting VLL

If a failure occurs while you are operating, see the HP P9000 Remote Web Console Messages.

For the problems and solutions regarding the Remote Web Console, see the HP P9000 Remote
Web Console User Guide

Troubleshooting Thin Provisioning

The following table provides troubleshooting instructions for using Thin Provisioning.

Causes and Solutions

Problems

Cause:

Shared memory for the V-VOL management area is not installed.

Solution:

Call the HP Technical Support and check if the shared memory for
the V-VOL management area is installed.

Cannot install Thin Provisioning.

Causes:

Pool usage level exceeds the threshold.

Too many THP V-VOLs are associated with a pool, or too much data
is stored in a pool.

Capacity of the pool is insufficient.

The threshold of the pool is too low.

Solutions:

Add some pool-VOLs to increase the capacity of the pool. See

“Increasing pool capacity” (page 111)

.

Set a larger value to the threshold of the pool. See

“Changing pool

thresholds” (page 107)

.

After correcting the causes of SIMs 620XXX and 621XXX or 620XXX
and 626XXX, you need to complete the SIMs. If you do not complete
the SIMs, no new SIM will occur even if the usage level increases and
again exceeds the threshold (target SIM codes are 620XXX, 621XXX,
and 626XXX).

SIMs 620XXX, 621XXX, 625000, and 626XXX are automatically
completed if you increase pool capacity by adding pool-VOLs because
the condition that caused the SIM is removed.

For details about how to complete the SIMs, see

“Manually completing

a SIM” (page 109)

.

Caution: You need free volumes to add as pool-VOLs. If there are no
free volumes, you need to create new volumes or ask the HP Technical
Support to add the hard disks. Therefore, it may take time to solve the
problem.

164 Troubleshooting

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