Returned Values - HP StorageWorks P9000 - Disk Arrays Reference Manual

Option
-cto <o-time>
[c-time] [r-time]
-nocsus

Returned values

The paircreate command sets either of the following returned values in exit (), which allows users
to check the execution results using a user program.
Normal termination: 0. When creating groups, 0 = normal termination for all pairs.
Abnormal termination: Other than 0. See the execution logs for error details.
Description
Continuous Access Asynchronous and Continuous Access Journal only.
These options are valid for only HORC Async/Cnt Ac-J, if you will specify "-cto <o-time> [c-time]
[r-time]" option on HORC sync, then it is ignored.
o-time:
This option is used when setting "offloading timer" for controlling Inflow of Write I/O to the specified
CT group.
For Continuous Access Asynchronous o-time must be specified within the limits of 255 from 1, in
units of sec as value. If this option is not specified, then "90" seconds is set as default.
For Cnt Ac-J, o-time must be specified within the limits of 600 from 1, in units of sec as value. If this
option is not specified, then "60" seconds is set as default.
If "o-time=0" is specified, then sets as "OFF" that does not control inflow.
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(600) seconds).
Default timeout value are 90(60)seconds. If the timeout happens with this waiting state, then the
pair state is changed from "PAIR" to "PFUS" 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](Continuous Access Asynchronous only): This option is used when setting "Copy Pending
timer" to the specified CT group. c-time must be specified within the limits of 15 from 1, in units of
minutes as value. If this option is not specified, then this value is set as below.
If a CT group is created, then sets 5 minutes as default, if not, it is not changed.
[r-time] (Continuous Access Asynchronous only): This option is used when specifying "RCU Ready
timer" to the specified CT group. r-time must be specified within the limits of 10 from 1, in units of
minute as value. If this option is not specified, then this value is set as below.
If a CT group is created, then sets 5 minutes as default; if not, it is not changed.
NOTE: These options are invalid when pair-volume is added in CT group.
The propagation and persistence of these parameters are as follows.
For HORC Async, these parameters are also forwarded to the S-VOL side with the paircreate
command, and are used when S-VOL is changed to P-VOL. These parameters are maintained until
the pair-volumes are changed to SMPL
For Cnt Ac-J, these parameters are maintained on each journal, therefore it must be set respectively
on both P-VOL and S-VOL side. For example to change 30 seconds:
paircreate -g Cnt Ac-J -vr -f async -nocopy -jp 1 -js 1 -cto 30
pairsplit -g Cnt Ac-J -S
paircreate -g Cnt Ac-J -vl -f async -jp 1 -js 1 -cto 30
These parameters are maintained until the journal is broken.
Continuous Access Journal only.
This option is used to create the suspended journal volumes without copying data in order to make
the delta-resync between DC2 (Sync-S-VOL) and DC3 (Cnt Ac-J-S-VOL).
paircreate 25