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Detected high command timeouts, short spin downs and where is readynas OS installed please?
Hi all,
Started getting these emails recently
Detected increasing command timeouts errors: [25] on disk 2 (Internal) [ST4000VN000-1H4168, Z3018KBN] 21 times in the past 30 days. This cond...
sc101hell wrote:
1) Should I be worried about the high command timeout warnings?
Yes. 25 iisn't a huge count, but I do recommend monitoring the rate of increase.
sc101hell wrote:
2) Where is the Readynas OS stored, on installed disks or on the user installed ones?
Not sure what you mean by "installed disks" vs "user-installed disks". The only disks are the two you installed. The OS is stored on both of them (on a 4 GB RAID-1 volume - /dev/md0).
sc101hell wrote:
1) Should I be worried about the high command timeout warnings?
Yes. 25 iisn't a huge count, but I do recommend monitoring the rate of increase.
sc101hell wrote:
2) Where is the Readynas OS stored, on installed disks or on the user installed ones?
Not sure what you mean by "installed disks" vs "user-installed disks". The only disks are the two you installed. The OS is stored on both of them (on a 4 GB RAID-1 volume - /dev/md0).
Thanks Stephen,
1) No timeouts since I turned off the disk spin down on 28th. The disk is getting the same level of access from the scripts during that time so it's likely related to an error being logged specifically when spinning up (?)
That's helpful now though, I'll start moving files that change somewhere else and see whether I can get then to properly spin down for more than a couple of minutes and whether I then get the errors when they spin back up
2) Thanks, sorry for the lack of clarity there. I was wondering whether it had some small internal memory/ disk installed.
So... being really stupid. How is the OS installed on first boot? Let's say I put two new disks in there, where is the image/ bootstrap held to install onto those?
On initial install (or a factory reset), the drives are formatted and the OS is installed from flash memory. When/if the system boots up in safe mode it is also running from flash. Otherwise it boots from the disks.
Have you come across some document explaining the boot procedure?
In other systems I use I'd expect to see the root partition booted through /etc/fstab or theinitramfs (cat /proc/cmdline)
Reason I'm asking is I was thinking of moving the var folder in the hope of spinning down disks, although I guess I could just move the logs as that seems the most accessed (already moved DHCP leases)root@NETNAS:/media/USB_FLASH_3# ./accessed_files.sh searching /etc --- accessed files searching /var /var/log/journal/332b110526d845868283a70ef70435a6/system.journal /var/readynasd/loadavg.dat /var/lib/samba/private/msg.sock /var/backups/readynasd /var/backups/readynasd/readynasd_2018_08_30_150314.db.lz4 --- accessed files /var/backups/readynasd/readynasd_2018_08_30_150314.db.lz4
accessed_files.shroot@NETNAS:/media/USB_FLASH_3# cat accessed_files.sh time=-30 srch_dir=/etc echo searching $srch_dir find $srch_dir -cmin $time # change time echo --- echo accessed files find $srch_dir -amin $time # access time srch_dir=/var echo searching $srch_dir find $srch_dir -cmin $time # change time echo --- echo accessed files find $srch_dir -amin $time # access time
Thanks for all this - really appreciate it.
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