Hi Andreas,
Evicted files can be accessible but file data blocks are evicted as part of cache eviction.
so, inodes will not be available to reuse in cache eviction. Cache eviction cannot evict inodes.
AFM cache should have same inodes capacity as the total amount of files(inodes) at home.
Regards,
-Saket
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Subject: [EXTERNAL] gpfsug-discuss Digest, Vol 92, Issue 4
Date: Thu, Sep 5, 2019 4:30 PM
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1. Inode reuse on AFM cache eviction (Andreas Mattsson)
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Date: Thu, 5 Sep 2019 09:54:04 +0000
From: Andreas Mattsson <[email protected]>
To: GPFS User Group <[email protected]>
Subject: [gpfsug-discuss] Inode reuse on AFM cache eviction
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Hi,
Does anyone here know if cache eviction on a AFM cache also make the inodes used by the evicted files available for reuse?
Basically, I'm trying to figure out if it is enough to have sufficient inode space in my cache filesets to keep the maximum expected simultaneously cached files, or if I need the same inode space as for the total amount of files that will reside in the home of the cache.
Regards,
Andreas Mattsson
____________________________________________
[X]
Andreas Mattsson
Systems Engineer
MAX IV Laboratory
Lund University
P.O. Box 118, SE-221 00 Lund, Sweden
Visiting address: Fotongatan 2, 224 84 Lund
Mobile: +46 706 64 95 44
<mailto:[email protected]>[email protected]<mailto:[email protected]>
www.maxiv.se<http://www.maxiv.se/ >
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