Quote:
Originally posted by bigben2k
Believe it: you loose everything.
I think that if anything, I might go for the Seagate Barracuda V that's got the three year warranty, and comes with the IDE ATA-100 interface, if the mobo doesn't come with the SATA power adapter.
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Ben I dont mean to trash you here, but you are on crack!
One sector does NOT loose everything, and 99% of the time it doesnt loose anything. You forget the fact there is a massive ring of "spares" on all SCSI and most current ATA disks where "defective" or "marginal" sectors data is remapped to. this happens in the background, and without warning. Some disc's come out of the box with a dozen or more remapped sectors already.
Any raid controler ( for scsi atleast) is very good at recovery of something as small as a bad sector.
Sector remapping is nothing new, and its being used in most new drives being made in ATA land... it used to be a fringe benifit for SCSI drives ( which is why when you Low Level a SCSI drive bad sectors seem to dissapear some times since durring a low level a read test is done and any marginal sectors are remapped. Now this only works for so long until you have problems (run out of spares) but by then the SMART or SCSI equiv. will throw errors letting you know there is more bad sectors than normal and the drive is about to die.
all this FUD about RAID 0 vs a single drive is BS. Heres my theory... i run a pretty large 100 GB array athome, built out of 9.1GB SCSI drives.. its RAID 0. Now if you take the whole... "% risk" factor and work it in, it would seem that only a fool would run an array with that many discs in RAID 0. Well I am a big Anti RAID 5 zealot... I think RAID 5 is the biggest POS ever. ( its all about the 1/0) So I just do backups.
Yep folks... Backups. I am a true Backup fiend.. I have owned 2 35/70DLT drives and now I am looking at buying a 100/200 LTO or SDLT drive in the near future. Because I believe that you can use RAID 0 perfectly safe ( even in real big arrays) if you protect your data some other way. If all you keep on the array is pr0n, then no big loss, you just surf a newsgroup and 15 min later you got your gigs of pr0n back. My data on that array is mostly my application pool and CD image pool ( its 95% full). SO its something I dont want to loose since theres a ton of data on it.
Err I have gotten pretty off topic... So My vote is ... RAID0 the beyatch and just burn the goodies to DVD, or spin it to Tape once a month. the chance of an unexpected failure is not to high, but if it happens you atleast have something to fall back on.
Also.... if you run a chaching RAID controler MAKE SURE you have a battery backup on the controler or a UPS with a shutdown system setup on your box. That CAN total an array, if a controler is powered down out of no where while it still had data cached it was writing. Seen that happen too many times.
so a nice APC SmartUps ( what I have on my server) with the shutdown service on the server, so if you loose power it does a controled shutdown.