[Bug 652812] Re: task blocked for more than 120 seconds on server kernel

[Lars]

Hi,

the probability is significantly higher when writing to both tape drives in parallel.
When writing to only one drive there is a good chance to get it done correctly.

By the way I use mbuffer and a lot of memory for the backup process:

normally both in parallel:
RAID6 -> XFS -> tar -> mbuffer1 (12GB RAM) -> tape drive1 (LTO-3)
RAID6 -> XFS -> tar -> mbuffer2 (12GB RAM) -> tape drive2 (LTO-3)

regards
Lars

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task blocked for more than 120 seconds on server kernel
https://bugs.launchpad.net/bugs/652812
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