On Thu, Sep 15, 2005 at 03:30:05PM -0700, Blake wrote: > <following topic with interest> > > What I normally do (rather than using RAID) is copy stuff to another > hard-drive. I don't know of many people with good experiences using RAID. > (And one of them--RAID0?--appears to be some sort of practical joke.<s>)
It's no joke. For me, I had one 250g disk fail w/out raid and it was a complete hassle. I wasted tons of time worrying about how to save my data, research, etc. I now know a bit about LVM2 and RAID, but I still lost 60% of my recorded programs. I decided at that point that my time is worth more than anything. I run a raid10 system currently with 6 250g disks. They are raid1 (mirrored) pairs of disks, and then the three raid1 mirrors are stuck together with raid0 to form a PV for LVM. After taking out space for root/swap, I've got a 693g PV. For a while I ran two of the raid1 devices degraded until the drives went on sale. At $99/drive it's far cheaper than wasting days/weeks trying to salvage and restore and reshuffle. I chose LVM on top of the raid10 device so I can add another pair of disks and create another PV. Not quite the performance boost of raid0, but I'll worry about that when I get there. As it is now, I've still got 285g free in the PV. BTW - heat and space are an issue. I've only got room for two more drives and I've got fans blowing over each pair. My temps are: # hddtemp /dev/hda /dev/hdc /dev/hdi /dev/hdk /dev/hdm /dev/hdo /dev/hda: Maxtor 6Y250P0: 28 C /dev/hdc: Maxtor 6Y250P0: 24 C /dev/hdi: Maxtor 6B250R0: 38 C /dev/hdk: Maxtor 6B250R0: 37 C /dev/hdm: Maxtor 6B250R0: 28 C /dev/hdo: Maxtor 6B250R0: 28 C The two in the 30's are in my 4-in-3 kit. I'll have to work out why it's so hot on the top of my case.
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