Using bpduplicate to create copy 2 with shorter retention time than primary copy
Hi,
Our primary backups are stored in Puredisk on their local datacentre. We have a scheduled bpduplicate job that runs each night to create an offsite Copy 2 for each backup image in a Puredisk storage pool at an alternate datacentre. Retention on all images, copy 1 and copy 2, has been 1 month up until now.
However, we're a bit tight on space so I want to change the retention of the second copy for each image to be 1 week only. I can see that this should be achievable with the "-rl" switch and have read the command manual, which gives the syntax as:
-rl <retention_level> [,<rl-copy2>,....,<rl-copyn>]
...but I can't seem to translate that into a command that does what I want.
If I supply something like this:
bpduplicate -dstunit DC2-PD-STU -policy DC1-AD -hoursago 24 -rl 0
That changes the retention level on both copy 2 and the primary copy to one week.
I've also tried:
bpduplicate -dstunit DC2-PD-STU -policy DC1-AD -hoursago 24 -rl 3,0
That just gives me "invalid command usage".
Does anyone have a working example of this switch in use?
Thanks in advance (and sorry if I'm missing something really obvious!)
Our primary backups are stored in Puredisk on their local datacentre. We have a scheduled bpduplicate job that runs each night to create an offsite Copy 2 for each backup image in a Puredisk storage pool at an alternate datacentre. Retention on all images, copy 1 and copy 2, has been 1 month up until now.
However, we're a bit tight on space so I want to change the retention of the second copy for each image to be 1 week only. I can see that this should be achievable with the "-rl" switch and have read the command manual, which gives the syntax as:
-rl <retention_level> [,<rl-copy2>,....,<rl-copyn>]
...but I can't seem to translate that into a command that does what I want.
If I supply something like this:
bpduplicate -dstunit DC2-PD-STU -policy DC1-AD -hoursago 24 -rl 0
That changes the retention level on both copy 2 and the primary copy to one week.
I've also tried:
bpduplicate -dstunit DC2-PD-STU -policy DC1-AD -hoursago 24 -rl 3,0
That just gives me "invalid command usage".
Does anyone have a working example of this switch in use?
Thanks in advance (and sorry if I'm missing something really obvious!)
- Hi Twinkle and thanks for the suggestion - the -cn switch didn't work as you thought it might though. Running the command that way seemed to look for a copy 2 to duplicate - it gave the output:
02:00:06 INF - Skipping copy 1 of backup id r0107g_1243371686, is not required copy 2.
I've worked around this by allowing the bpduplicate command to run without any change to the retention period, and then using bepexpdate to recalculate the copy 2 retentions:
-recalculate -copy 2 -policy DC1-AD -ret 0 -force
