Running 9.2.1.2 for about 1.5 months, the RAM started "disappearing":
2G of RAM free, yet the sum of all used RAM reported by "top" in this case doesn't add up to 32G. Where has it gone? My other FreeNAS server, running the same version for about the same time, still shows ARC at 20G, while this one, where there's a lot more activity (including large writes) - ARC is just a little over 3G, with the rest of RAM gone MIA...
At the same time, the GUI has become REALLY slow - takes sometimes up to a minute to do anything (like, add/update NFS shares).
The server has 32G of RAM. The zpool is:
The "logs" and "cache" disks are SSDs.
Any ideas how to figure out where the RAM has gone?
Thanks!
Code:
last pid: 44462; load averages: 1.85, 1.36, 1.35 up 40+05:30:07 14:45:10 46 processes: 1 running, 45 sleeping CPU: 0.1% user, 0.0% nice, 4.6% system, 1.0% interrupt, 94.3% idle Mem: 27M Active, 131M Inact, 29G Wired, 37M Cache, 471M Buf, 2085M Free ARC: 3442M Total, 250M MFU, 2020M MRU, 77M Anon, 831M Header, 362M Other Swap: 16G Total, 213M Used, 16G Free, 1% Inuse
2G of RAM free, yet the sum of all used RAM reported by "top" in this case doesn't add up to 32G. Where has it gone? My other FreeNAS server, running the same version for about the same time, still shows ARC at 20G, while this one, where there's a lot more activity (including large writes) - ARC is just a little over 3G, with the rest of RAM gone MIA...
At the same time, the GUI has become REALLY slow - takes sometimes up to a minute to do anything (like, add/update NFS shares).
The server has 32G of RAM. The zpool is:
Code:
[root@nas1-ny] ~# zpool status pool: export state: ONLINE scan: scrub repaired 0 in 18h8m with 0 errors on Sun Apr 13 18:08:56 2014 config: NAME STATE READ WRITE CKSUM export ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 gptid/3fde2ea4-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 gptid/406ccc07-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 mirror-1 ONLINE 0 0 0 gptid/40fd6219-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 gptid/418b432c-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 mirror-2 ONLINE 0 0 0 gptid/421db71a-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 gptid/42adf9cb-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 mirror-3 ONLINE 0 0 0 gptid/433ec103-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 gptid/43cdbb0b-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 logs gptid/44007bae-6446-11e3-bf14-b8ca3a61e4dc ONLINE 0 0 0 cache gptid/14ee65ad-6719-11e3-937e-b8ca3a61e4dc ONLINE 0 0 0 errors: No known data errors
The "logs" and "cache" disks are SSDs.
Any ideas how to figure out where the RAM has gone?
Thanks!