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LSFS HA partners different sizes

Posted: Wed Dec 28, 2016 8:32 am
by Anton Chernomazov
We've 1 TB LSFS HA target w/dedupe. For a long time (hours) 1st partner has allocated size 356 GB (metadata size - 3,36 GB, defragmentation - 13%) when 2nd partner has allocated size 354 GB (metadata size - 3,34 GB, defragmentation - 12%).

Is it normal when partners have different allocated sizes? Is it safe?

BTW KB says the maximum size for a LSFS file segment is 512 MB (Technical properties, p.4). For this target we have 516 MB (541 065 216 bytes) for a segment.

Re: LSFS HA partners different sizes

Posted: Fri Dec 30, 2016 3:17 pm
by Al (staff)
Hello Anton,
The difference in size between LSFS devices is normal behavior because each node could have the different journal size.
As for the snapshot size - it is 512 MB + 4 MB header size.