Technology Tales

Adventures & experiences in contemporary technology

A case of double vision?

4th November 2009

One of the early signs that I noticed after upgrading my main PC to Ubuntu 9.10 was a warning regarding the health of one of my hard disks. Others have reported that this can be triggered by the least bit of roughness in a SMART profile but that’s not how it was for me. The PATA disk that has hosted my Ubuntu installation since the move away from Windows had a few bad sectors but no adverse warning. It was a 320 GB Western Digital SATA drive that was raising alarm bells with its 200 bad sectors.

The conveyor of this news was Palimpsest (not sure how it got that name even when I read the Wikipedia entry) and that is part of the subject of this post. Some have been irritated by its disk health warnings but it’s easy to make them go away by turning off Disk Notifications in the dialogue that going to System > Preferences > Startup Applications will bring up for you. To fire up Palimpsest itself, there’s always the command line but you’ll find it at System > Administration > Disk Utility too. My complaint about it is that I see the same hard drive listed in there more than once and it takes some finding to separate the real entries from the “bogus” ones. Whether this is because Ubuntu has seen my SATA drives with SIL RAID mappings (for the record, I have no array set up) or not is an open question but it’s one that needs continued investigation and I already have had a go with the dmraid command. Even GParted shows both the original /dev/sd* type addressing and the /dev/mapper/sil_* equivalent with the latter being the one with which you need to work (Ubuntu now lives on a partition on one of the SATA drives which is why I noticed this). All in all, it looks less than tidy so additional interrogation is in order, especially when I have no recollection of 9.04 doing anything of the sort.

Palimpsest Disk Utility

Add a Comment

Your email address will not be published. Required fields are marked *

Please be aware that comment moderation is enabled and may delay the appearance of your contribution.

  • All the views that you find expressed on here in postings and articles are mine alone and not those of any organisation with which I have any association, through work or otherwise. As regards editorial policy, whatever appears here is entirely of my own choice and not that of any other person or organisation.

  • Please note that everything you find here is copyrighted material. The content may be available to read without charge and without advertising but it is not to be reproduced without attribution. As it happens, a number of the images are sourced from stock libraries like iStockPhoto so they certainly are not for abstraction.

  • With regards to any comments left on the site, I expect them to be civil in tone of voice and reserve the right to reject any that are either inappropriate or irrelevant. Comment review is subject to automated processing as well as manual inspection but whatever is said is the sole responsibility of the individual contributor.