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Forum Discussion
Seagate 7200.12 and spindown/spinup/UpdateSpindown
I have my RND4410 NV+ set to spin-down its drives at 10 minutes, because my one/only use for the NAS is once per day at 2300 when I backup a certain PC to it. But I have noticed that sometimes my driv...
After updating my drive firmware, downgrading my ReadyNAS firmware from 4.1.8 to 4.1.4, and applying Skywalker's UpdateSpindown_4.1.4.bin patch, I observed that the noflushd (spindown) operation is indeed very different:
1. Each disk is spun-down one at a time where with 4.1.8 they all spun-down at once
2. For every disk, there is a "Reading ahead to avoid future spinups" set of commands. Before there was just one set of these.
2. There is a "Syncing /dev/hdx" for every one of the mounts, and before each of the "Sending spindown command"s where with 4.1.8 this was done just once at the beginning
Regardless, the patch did not fix my problem of "spinups immediately following spindowns" therefore something is broken (likely with noflushd) which is beyond my understanding. I have therefore turned-off Frontview's "spindown after x minutes" feature i.e. noflushd, and resorted instead to using the Power Timer. Now the ReadyNAS comes on each day at 0555, my PC backups run from 0600 to 0620 or thereabouts, and the ReadyNAS is free to do its thing (smart check, time update, log rotate, etc.) until 0700 whereupon it shuts-down again via Power Timer schedule.
If I need the ReadyNAS at any time during the day, I press the Power button, and when I'm finished, I use puTTY and SSH to issue its soft-off command (I have no idea what this actually does, but it works). This is the same command that is scheduled via Frontview and is in /etc/cron.d/poweroff:
/frontview/bin/autopoweroff &> /dev/null
Sure would be nice if Frontview had a button somewhere so I could do this without puTTY, but otherwise this above is far superior to noflushd's erratic behavior.
Thankfully I only really use my ReadyNAS once a day to backup my PCs so leaving it off 23 hours/day should greatly extend its life.
If anyone knows what "autopoweroff" does in hardware, or otherwise thinks I'm mistaken about any of my assumptions, by all means leave comments.
1. Each disk is spun-down one at a time where with 4.1.8 they all spun-down at once
2. For every disk, there is a "Reading ahead to avoid future spinups" set of commands. Before there was just one set of these.
2. There is a "Syncing /dev/hdx" for every one of the mounts, and before each of the "Sending spindown command"s where with 4.1.8 this was done just once at the beginning
Regardless, the patch did not fix my problem of "spinups immediately following spindowns" therefore something is broken (likely with noflushd) which is beyond my understanding. I have therefore turned-off Frontview's "spindown after x minutes" feature i.e. noflushd, and resorted instead to using the Power Timer. Now the ReadyNAS comes on each day at 0555, my PC backups run from 0600 to 0620 or thereabouts, and the ReadyNAS is free to do its thing (smart check, time update, log rotate, etc.) until 0700 whereupon it shuts-down again via Power Timer schedule.
If I need the ReadyNAS at any time during the day, I press the Power button, and when I'm finished, I use puTTY and SSH to issue its soft-off command (I have no idea what this actually does, but it works). This is the same command that is scheduled via Frontview and is in /etc/cron.d/poweroff:
/frontview/bin/autopoweroff &> /dev/null
Sure would be nice if Frontview had a button somewhere so I could do this without puTTY, but otherwise this above is far superior to noflushd's erratic behavior.
Thankfully I only really use my ReadyNAS once a day to backup my PCs so leaving it off 23 hours/day should greatly extend its life.
If anyone knows what "autopoweroff" does in hardware, or otherwise thinks I'm mistaken about any of my assumptions, by all means leave comments.
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