HP XP P9500 Storage User Manual

Page 111

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Notes

Creation of relationships can fail if any of the following has been performed:

A scratch operation

Deletion of datasets

Volume initialization

Correct the situation by using the FCWITHDR command to withdraw the relationship, or by
waiting until the background copy operation completes and the relationship disappears.

When only a part of the copy target relationship is included in the specified extent as the
copy target, the volume relationship will not be withdrawn.

Comparing IBM FlashCopy SE and Compatible FlashCopy SE

The following table compares IBM FlashCopy SE and Compatible FlashCopy SE.

Table 64 Comparing IBM FlashCopy SE and Compatible FlashCopy SE

Compatible FlashCopy SE

IBM FlashCopy SE

Item

The usage amount in the pool is managed
in units of pages, and the usage amount of

Since usage amount in the pool is
managed in units of tracks, you cannot
write to the pool when the pool is full.

Action when the pool is full

the TSE-VOL in the page is managed in
units of tracks. When pages cannot be
allocated because the pool is full, you can
write to the pool until all tracks in the page
are used.

After you change the T-VOL status of a
Compatible FlashCopy SE pair to online

After you change the T-VOL status of a
FlashCopy pair to online and then change

Changing volumes to online

and then change it to offline and execute

it to offline and execute Fast Reverse

Fast Reverse Restore, you cannot change

Restore, you can change the new S-VOL
status to online.

the new S-VOL status to online because the
data is not guaranteed.

Comparing IBM FlashCopy SE and Compatible FlashCopy SE

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