HP XP7 Storage User Manual

Page 75

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Solutions

Tier relocation
operations

Status of fixed
monitoring
information used in
tier relocation

Status of data
collection in
progress

Monitoring
information or
execution conditions

N/A

Tier relocation of
the volume is
suspended.

Only monitoring
information on the
volume is invalid.

Volume is not
monitored.

When V-VOLs are
deleted

Collect the monitoring
information again if
necessary.

2

Suspended.

1

Monitoring
information collected
before suspension is
valid.

Suspended.

When execution
mode is changed to
Manual from Auto or
vice versa.

Collect the monitoring
information again if
necessary.

2

Tier relocation is
suspended by
powering OFF and
is resumed after
powering ON.

Monitoring
information collected
during the previous
cycle is continuously
valid.

Monitoring is
suspended by
powering OFF and
is not resumed even
after powering
ON.

2

When the power
switch is power ON
or OFF.

Collect the monitoring
information again if
necessary.

2

Tier relocation to
volumes is
suspended.

Monitoring
information is invalid
and the volumes need
to be monitored.

The volume is not
monitored.

3

When Auto LUN
is performed.

When Quick
Restore of
Business Copy Z
is performed.

Collect the monitoring
information again if
necessary.

2

Tier relocation to
volumes is
suspended.

No effect on the fixed
monitoring
information. The
monitoring information

Monitoring
information is
continuously
collected

S-VOLs used when
initial copies of
Continuous Access
Synchronous Z or

collected during the

continuously, but the

Continuous Access

previous cycle
continues to be valid.

monitoring of the
volumes is reset.

4

Journal Z are
performed.

Relocate tiers again.

2

Suspended.

Fixed monitoring
information is invalid
and is discarded.

6

Continued.

When the number
of tiers increases
by adding
pool-VOLs.

4

When the
pool-VOLs of the
tiers are switched
by adding
pool-VOLs.

5

When pool-VOLs
are deleted.

When tier rank of
the external LDEV
is changed.

After recovering the
faulty area, relocate
tiers again.

2

Suspended.

No effect on the fixed
monitoring
information. The
monitoring information

Continued.

When a cache is
blocked.

collected during the
previous cycle
continues to be valid.

After recovering the
faulty area, relocate
tiers again.

2

Suspended.

No effect on the fixed
monitoring
information. The
monitoring information

Continued.

When an LDEV is
blocked. (Pool-VOL
or V-VOL)

Smart Tiers Z

75

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