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| Thread ID: 140144 | 2015-08-24 16:33:00 | Removing a RAID 1 drive | BrotherDragon (10117) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 1407352 | 2015-08-26 06:53:00 | That has nothing to do with raid - if your hard reboot had corrupted some data files, those corrupted files would be faithfully replicated on the other disk over the top of the previously good ones. | fred_fish (15241) | ||
| 1407353 | 2015-08-26 08:17:00 | Perhaps in some situations if the data is corrupted on only 1 drive due to a power interruption or crash then RAID can recover from it as you describe provided it can identify which copy is valid, it's far more likely to do what Fred describes though. Is waiting hours for a rebuild really any better than restoring from a backup though? Also you are talking about a business and I was talking about home use. Last time I restored a system image of my C: drive it took less than 15 mins to completely recover. Admittedly I haven't done that often. I don't store critical files on my OS disk either, they are stored on a NAS which is backed up daily to another PC. If my PC fails everything is still accessible over the network. Even if I have to do a clean install all I lose is time. I went this way due to my own tendency to screw things up after I accidentally deleted my media collection a 2nd time. |
dugimodo (138) | ||
| 1407354 | 2015-08-26 21:53:00 | That has nothing to do with raid - if your hard reboot had corrupted some data files, those corrupted files would be faithfully replicated on the other disk over the top of the previously good ones. Yep, and that does happen. 1 corrupted/flaky drive causes the whole thing to fall over, completely, after the drives sync . Raid on home PC's is more trouble than its worth. Who really wants to wait 1/2 hour +++ for the drives to re-sync after a crash & re-boot. Money spend on that 2nd drive (mirror) is better spent on a USB HD for backups/disk images. |
1101 (13337) | ||
| 1407355 | 2015-08-27 16:45:00 | Hmmm . . . . . . . . . I have a Raid 1 setup on my business computer, and at least twice, and possibly three times (usually after working too late at night) I have done something stupid and ended up with a lock-out that required a hard reboot . On each occasion, after reboot RAID has reported corruption on one or more disks, then gone into a lengthy rebuild, during which the drive light stayed on constantly for several hours, but finally leaving me back where I started with all data intact etc and only the last few lines of my work lost, if that . In the early days with this computer there was a flaw in (I think) the RAID software and it was reporting a failed disk at boot time . It happened several times then I finally found the answwer myself on a US Forum and took it back to the builders to update the software . Throughout all of that my data stayed intact . I wouldn't want to be without it, back-ups not withstanding and it helps me sleep at night! Cheers Billy 8-{) I had the same problem early on when my computer went into sleep mode which I had to turn off as well as when I had to do a hard reset . It rather put me off RAID in general and certainly it made me ask myself whether as a casual user I really needed that sort of protection in the first place . As far as my original question I just bought a WD 1TB Passport portable hard drive for US$60 which I'll use to back up everything before I start so if anything goes wrong I'll be safe . I remember buying two 250MB(!) back in the day for almost $1,000, how times have changed . I imagine in 2-3 years I'll get the same deal for a portable SSD . Thanks to everyone for your help . |
BrotherDragon (10117) | ||
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