Tag: raid
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Replacing a Four Drives at Once
I would not have considered this tactic possible, but then I’ve often come from small raid setups or hardware raid setups that are unlikely to want to replace multiple disks at a time. Replacing four at a time!
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Two drives fail at once? Oh yeah…
Just as I thot I was all cool for having a sixteen drive NAS, today’s opening of it and trying a new network card (did not fit) left me with bad news on the next powerup. > dmesg | grep ata | grep error: [ 23.223221] ata13.00: error: { ABRT } [ 23.234448] ata13.00: error:…
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Resilvering: Just what I want to see
I love replacing failed hard drives. Mostly, because I hate having hard drive failures. root@cholla ~ $ zpool attach -f tank ata-ST2000DM001-9YN164_W1E16BJB ata-ST2000DM001-1E6164_W1E5W99Y root@cholla ~ $ zpool status -v pool: tank state: ONLINE status: One or more devices is currently being resilvered. The pool will continue to function, possibly in a degraded state. action: Wait…
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Disk Performance Analysis on Linux
Really Into the Guts of LinuxIt is possible to find out how hard your disks are running. Some you don’t want to run as hard as others. For instance, if you wanted to save on write cycles for your SSD you could move small frequent writes into a ram filesystem, and that seems to be…
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You Want a Vertex Turbo
Unless you want to go all spendy on an Intel X25-M or X25-E…However, after reading Anand’s SSD Anthology, the best value SSD is the OCZ Vertex Turbo. Some of my lingering questions have been answered! TRIM commands provide a modest performance enhancement if the drive is not near capacity. However as drives approach capacity, TRIM…
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