Camaleón wrote: > On Thu, 30 Aug 2012 11:07:15 -0400, Kamaraju S Kusumanchi wrote: > >> One of the partitions on my hard drive has badblocks. I did a >> >> $sudo e2fsck -c -c -f -v /dev/sdb7 >> >> on it and it found 757 badblocks. The partition itself is 100 GB and >> only 18 GB of it is filled. Now my question is how to salvage the data? > > Badblocks "per se" are not indicative for an inminent hard disk failure. > Badblocks usually come along with another signals as smart test failures, > I/O errors in the logs, speed decreasing when running common tasks, > smarctl showing a rapid increment for the values tagged as "pre_fail" and > such. >
ok. But in this case, I am not able to run smartctl on the hard drive. It is an external USB hard drive and smartctl does not recognize it. Unfortunately, I do not know what option to specify with the -d. $smartctl -a /dev/sdb smartctl 5.41 2011-06-09 r3365 [i686-linux-3.0.0-1-686-pae] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net /dev/sdb: Unknown USB bridge [0x059b:0x0571 (0x000)] Smartctl: please specify device type with the -d option. Use smartctl -h to get a usage summary > If you still decide to replace the disk with a newer one, I'd copy the > data from an off-line system (e.g., from a LiveCD). If data is still > fully accessible you can use any tool you prefer for the task. > > When it comes to cloning a full system I like Clonezilla (or the like) > applications. > > And for deep data corruption that lead to data lose there are specialized > tools such "PhotoRec/TestDisk" that can help you with recovery. > got it. Thanks. >> Can someone recommend a hard drive manufacturer/model that is more >> resistant to developing badblocks? The drive that gone bad is an iomega >> prestige portable USB 3.0 external hard drive. > > For a company I prefer to choose those hard disks tagged as "enterprise" > with 5 years guarantee (since I switched to SATA I always buy Seagate). > For me the badblocks seem to be developing after couple of years no matter what the hard drive is. May be I am doing something fundamentally wrong. What surprised me is that this is a back up drive and not used heavily at all. I guess iOmega drives are not very stable. > Also, I tend to avoid as much as I can those external hard disks that > came integrated along with the enclosure: I prefer to buy the case and > the disk as separate items so I can choose the best devices in the market > and also by doing it this way I can replace the hard disk in the event it > breaks or should I need more space :-) > This one is very slim and does not even have an external case. http://www.amazon.com/Iomega-Prestige-Portable- SuperSpeed-35194/dp/B004NIDHXC -- Kamaraju S Kusumanchi http://malayamaarutham.blogspot.com/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/k1obun$lfd$1...@ger.gmane.org
