Tag: zfs on linux
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ZFS on Linux: How to find the arc stats (was arcstat.py)
This has now changed; run the following to find the adaptive read cache stats (ARC): cat /proc/spl/kstat/zfs/arcstats You can gleam some really useful information out of how your RAM is being utilised and what your required ARC size might be from the results – this may be a topic for a future post,…
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ZFS on Linux: Zpool import failed
We upgraded a Proxmox box today which was running ZFS and ran into this rather scary looking error: zpool: ../../lib/libzfs/libzfs_import.c:356: Assertion `nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID, &theguid) == 0′ failed. Zpools would not import and zpool status did not work. Resolved (so far, anyhow, still testing) by running: apt-get install zfsutils Another good reason…
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ZFS on Linux (Ubuntu) – arcstat.py is now available! How do you run it?
UPDATE: This information is now out of date, see new post here. One very handy ZFS-related command which has been missing from the standard ZFS on Linux implementation has been arcstat.py. This script provides a great deal of useful information about how effective your adaptive read cache (ARC) is. ZFSoL 0.6.2 includes it,…