HP XP7 RAID Manager Reference Guide (T1610-96064)

DescriptionOption
to 255 seconds. If this option is not specified, 90 seconds is set as default. For Continuous
Access Journal, o-time cannot be specified. If you want to change the value for offloading timer,
use the raidcom modify journal command. If you do not change the value by executing the
raidcom modify journal command, 60 seconds is set as default. If o-time=0 is specified, the
inflow of Write I/O becomes invalid. If Sidefile quantity is over limit of Sidefile Area then host
side Write I/O is waited for enough space of Sidefile when storing next new write data until
this timeout value (1 second to 255 seconds for Continuous Access Synchronous Async, and 1
second to 600 seconds for Continuous Access Journal). The default timeout values are 90
seconds for Continuous Access Synchronous Async, and 60 seconds for Continuous Access
Journal. If the timeout happens with this waiting state then pair state is changed from PAIR to
PSUS state of sidefile(Journal) Full, and its host side Write I/O is continued and Writing data
is managed by BITMAP mode. Therefore o-time timeout value should have less a low value than
I/O timeout value of the host system
[c-time]: (Applicable for only Continuous Access Synchronous Async) This option is used when
setting Copy Pending timer to the specified CT group. c-time can be specified from 1 to 15, in
a unit of one minute. If this option is not specified, then this value is set as below.
• If CT group is created, then sets 5 minutes as default. If not, it is not changed.
[r-time]: (Applicable for only Continuous Access Synchronous Async) This option is used when
specifying RCU Ready timer to the specified CT group. r-time can be specified from 1 to 10, in
a unit of one minute. If this option is not specified, then it is not changed.
Note:
• These options will also be able to set, if all volumes of CT group is suspended.
• The propagation and persistence of these parameters are as follows.
For Continuous Access Synchronous Async, these parameters are also forwarded to SVOL side
with pairresync command, and are used when SVOL is changed to PVOL. These parameters
are maintained until the pair-volumes are changed to SMPL.
For Continuous Access Journal, these parameters are maintained on each journal. Therefore, if
you set the value for offloading timer, execute the raidcom modify journal command on both
PVOL and SVOL side.
Continuous Access Synchronous/Continuous Access SynchronousAsync/Continuous Access
Journal only.
-f[g] <fence>
[CTGID]
-f[g] <fence> [CTGID] (Continuous Access Synchronous only): This option is used to change
from existing Continuous Access Synchronous Sync volumes to Continuous Access Synchronous
Sync CTG without deleting paired-volume. It is possible to change the option (fence level) and
the volume attribute as shown below. This option is valid without '-swaps' or '-swapp' option.
Changing the option (fence level) and the volume attribute:
OptionsAttribute
-fg fence CTGID-fg fence-f fence
Changes to Sync CTG Updates
fence*
Cmd rejected
Abnormal term.
Updates fenceSync
Cmd rejectedUpdates fenceChanges to Sync Updates
fence
Sync CTG
Abnormal term.
Cmd rejectedCmd rejectedCmd rejectedAsync
Abnormal term.Abnormal term.Abnormal term.
Explanation of terms:
fence: data, status, or never ('async' cannot be specified)
Cmd rejected/Abnormal term.: Command execution is rejected, and the operation terminates abnormally.
*If the identical CTGID is specified with the different group name of RAID Manager, then the command is rejected.
So different CTGID must be specified for the different group name.
pairresync 41