Hello, On Tue, 12 Apr 2011, Dave Howorth wrote:
David Haller wrote:
Let's say I'd use LVM, what if e.g. /dev/sde shows defects (seen in the SMART data). Can LVM show me what dirs and files(!) I have on the PV(s) on that probably soon-failing drive?
Doesn't matter because in the sane world you're now running LVM over a RAID, right? So the RAID tells you it's replaced /dev/sde with the hot spare and the rebuild is in progress. End of story. :-P
Ok, now, how'd you contruct a raid over my discs? And note that so many having 2T size is purely coincidental, due to the fact that available and sanely prices sizes (compared to 2T) have stalled there for over a year! 18 months ago, I had about 2 of each of 500G, 750G, 1000G, 1500G, 2000G or so. Now, how do you make a sane (Linux Software-)RAID (Levels 5 or 6), over _those_ drives? And note: the steady state of (my) disks is full! It's been YEARS since I've been below ~85% usage overall (and that only with a new, fresh and bigger HDD installed). Yes, those 5%-15% "free" amount to TB currently, but the problem remains. The simple fact is, I can't shell out to replace e.g. 6 500G drives by 6 1T drives, then 6 2T drives etc. I HAVE differently sized disks. How to have a sane RAID thingy across those without going bonkers? I'd be real happy if you'd come up with a good idea!
-dnh, hand-selected, translated sig for this occasion
[1] All Hardware Sucks, All Software Sucks,
[2] anything that can go wrong, will. At the most inconvenient time. Wreaking as much havoc as possible [e.g. taking the most important data with it].
But yes, I do agree with these points. Sometimes it would keep me awake at night if I was the obsessive worrying type.
If I were, I'd have twice as much disks, each one bought with a size-twin from a different vendor, each possibly mirrored to it's twin ... Or something ... -dnh, who's lost 2 500G drives a while ago, one announced itself, I got most copied off of it, one dying "just like that" (not even showed up in the BIOS anymore, plain dead). Anyway, "re-gettable" data. Still missing some stuff, but it's just TV in that case ;) Irregettable stuff is kept on at least two drives, occasionally copied to the other box to yet a third drive. I'd be grilled though if there'd be a flood. -- [Die Merkel] sitzt dann in der VIP-Loge beim Fußball rum in ihrem rosa Pokemon Kostüm ... -- Hagen Rether -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org