Unsolved
This post is more than 5 years old
39 Posts
0
1368
March 23rd, 2020 03:00
Isilon SyncIQ snapshot big size
Hi all!
Recenlty we have some issues (about all snapshot ID size) with some sync policies throught syncIQ.
In a concrete case we have change only the destination folder path from one already created. I understand that the policty ID and Snapshot ID it remains the same.
Why the snapshot associated with this policty it grew up so much after it was applied the new modification?
- (In 12 hours it was grow up from 3Tb to 6Tb)-
It seems that it's a bad practice it isn't create a brand new policy if not re-use an existing syncIQ policy.
What may make sense with this issue?
What can it was happenning with this snapshot?
Many thanks for the help.
Regards.
0 events found
No Events found!
DELL-Sam L
Moderator
•
7.9K Posts
0
March 23rd, 2020 14:00
Hello InfraMED,
When you made the change to the policy a treewalk sync runs, and will rewrite the data. What you can do is to set the diff_sync option before running the reset policy so that data which already exists on the target is not written to prevent the SIQ-Failover snapshot from growing.
# isi sync policy modify --diff_sync=on
Please let us know if you have any other questions.
InfraMED
39 Posts
0
March 25th, 2020 02:00
Many thanks @DELL-Sam L .
It seems that for our currently version from OneFS (8.0.0.7) that command it doesn't exist.
I have try with this option:
--target-compare-initial-sync
Does it the same feature that the other option?
Thanks.
Best regards.