Hmm.. for me: > smartctl -A -d ata /dev/sda On my work machine with Debian Sarge: ---------------------------------------------------------------------------- smartctl version 5.32 Copyright (C) 2002-4 Bruce Allen Home page is http://smartmontools.sourceforge.net/ Smartctl: Device Read Identity Failed (not an ATA/ATAPI device) A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options. ---------------------------------------------------------------------------- Did you apply the libata patch? I saw that here: http://smartmontools.sourceforge.net/#testinghelp I'm on kernel 2.6.10 and haven't applied any patches.. maybe it's included on 2.6.11 now or a difference between smartctl 5.32 and 5.33? The drives I have are on an Intel ICH5 SATA controller. I am doing a few RAIDed partitions between a couple of 120GB drives since I reinstalled my work machine a few weeks ago. I think I'm using libata (the option marked as 'conflicting' with it isn't enabled in my kernel). Any thoughts? Derek On Wed, 9 Mar 2005 11:53:11 +0100, peter.greis@xxxxxxx <peter.greis@xxxxxxx> wrote: > Good point about maxing out the pci bus... - I already use the nForce for mirrored boot drives, so that's not an option. The IDE controllers are empty at the moment (save for a DVD drive); I will give this a thought. > > Thanks for the feedback, > > -P > > -----Original Message----- > From: linux-raid-owner@xxxxxxxxxxxxxxx > [mailto:linux-raid-owner@xxxxxxxxxxxxxxx]On Behalf Of Nicola Fankhauser > Sent: Wednesday, March 09, 2005 10:48 AM > To: linux-raid@xxxxxxxxxxxxxxx > Subject: Re: now on to tuning.... > > hi peter > > peter.greis@xxxxxxx wrote: > > I have been lurking for a while.... I recently put together a raid 5 > > system (Asus K8NE SIL 3114/2.6.8.1 kernel) with 4 300GB SATA Seagate > > drives (a lot smaller than the bulk of what seems to be on this > > list!). Currently this is used for video and mp3 storage, being > > Reiser on LVM2. > > beware that LVM2 _can_ affect your performance. I too believed that the > concept of dynamic drives is good, but I experienced a performance hit > of about 50% (especially in sequential reads). > > see my blog entry describing how I built my 2TB file-server at > http://variant.ch/phpwiki/WikiBlog/2005-02-27 for some numbers and more > explanation. > > the K8NE has the same SiI 3114 controller as the board I used has; it is > connected by a 33mhz 32bit PCI bus and maxes out at 133MiB/s, so for > maxmimum performance you might want to connect only two drives to this > controller, the other two to the nforce3 chipset SATA ports. > > > Bonnie++ to test, but with which parameters ? > > normally it's enough to specify a test-file larger (e.g. twice) the > memory capacity of the machine you are testing. for a machine with 1GiB RAM: > > # bonnie++ -s 2gb {other options} > > you might as well want to specify the "fast" option which skips per-char > operations (which are quite useless to test IMHO): > > # bonnie++ -f {other options} > > HTH > nicola > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Derek Piper - derek.piper@xxxxxxxxx http://doofer.org/ - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
