Ages ago I bought an Iomega ix2-200 two bay NAS with twin 2TB drives in RAID-1 mirror configuration.
A year or so ago I discovered that one drive had failed. I drove direct to a supplier and bought a 3TB drive of a comparable nature. Installed, and prayed to the gods of storage that the array rebuild completed before the second one failed. It did. Sweat wiped from brow, I enabled email warnings and went back to ignoring it.
Every time there's a power cut I get an email. That's all, so far. But hard disks being hard disks... one of them is bound to fail some time, likely the old original one now that they're mismatched.
Given how nervous a mirror setup makes me feel when one fails with no other backup... my plan is to add another 3TB drive to the array via USB.
My other plan is to replace the not-yet-failed 2TB drive with another 3TB drive and scale up the storage into the unused 1 gig.
My final plan is to extract all the info from my still-working USB 2TB drive and get that into the mirrored NAS storage.
That'll leave me with one happy external 2TB general purpose drive for moving big bits of data around, and one 3-way RAID-1 mirror NAS which I'm unlikely to be made nervous by.
Not a bad place to be. Unlike now.
A few things:
SSH is root@nas with password = soho+admin's password eg if admin has password 'p4ssw0rd' then it's 'sohop4ssw0rd'
Link to enable/disable that in the firmware I have is: http://nas/diagnostics.html
File systems are XFS inside LVM inside Linux SW RAID in mirrored mode. Root has ext2 mirrored FS for other stuff. Firmware lives on some flash on the main board.
Instructions: http://blog.millard.org/2011/04/non-des ... on-in.html
The 3TB drive in it is this: ST3000VX000 Seagate SV35 Drive 3TB 7200RPM SATA3
The 2TB drive in it is some low-end drive without the required reliability ratings! :-(
New drive to match: https://www.pbtech.co.nz/product/HDDSE6 ... D--durable
Although I don't care about speed much, I'm not sure it's a great idea to have a third drive over USB as it'll be quite a bit slower than the SATA inside, but perhaps not much slower than the LAN connection?
RAID info: http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html
and https://help.ubuntu.com/community/Insta ... ftwareRAID
- where Open Source means Open Source, and Free means FreedomFreeEMS.org
- the open source engine management systemFreeEMS dev diary
and its comments thread
and my turbo truck!n00bs
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