No, you won¹t be able to write to either the OST or MDS directories, or even examine them ... they¹re just mount points to provide you with feedback about disk usage.
I read in the docs that future releases may do something more useful with these mount points, but for now, that¹s all they do. :-) cheers, Klaus On 10/26/07 1:47 AM, "Iain Grant" <[EMAIL PROTECTED]>did etch on stone tablets: > Sorry please Ignore me, I have now done a > > mount -t lustre [EMAIL PROTECTED]:/testfs /mnt/test > > and can write to the /mnt/test area. > I thought I would be able to write to the OST area, apologies > > Iain > > > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Iain Grant > Sent: 26 October 2007 09:42 > To: [email protected] > Subject: [Lustre-discuss] Experienced New User needing help > > Sorry folks I¹m still not getting any life from this. > I¹ve followed the manual and the following steps > > Module options for networking should first be set up in /etc/modprobe.conf, > e.g. > # Networking options, see /sys/module/lnet/parameters > options lnet networks=tcp > # end Lustre modules > [edit > <http://wiki.lustre.org/index.php?title=Mount_Conf&action=edit&section > =6> ] > Making and starting a filesystem > combo MDT/MGS on my single node' > mkfs.lustre --fsname=testfs --mdt --mgs /dev/sda1 > mkdir -p /mnt/test/mdt > mount -t lustre /dev/sda1 /mnt/test/mdt > cat /proc/fs/lustre/devices > 0 UP mgs MGS MGS 5 > 1 UP mgc [EMAIL PROTECTED] 303242f4-5aa3-5377-4895-90a397d56153 5 > 2 UP mdt MDS MDS_uuid 3 > 3 UP lov testfs-mdtlov testfs-mdtlov_UUID 4 > 4 UP mds testfs-MDT0000 testfs-MDT0000_UUID 3 > Then I configured OST on the same node > mkfs.lustre --fsname=testfs --ost [EMAIL PROTECTED] /dev/sda2 > mkdir -p /mnt/test/ost0 > mount -t lustre /dev/sda2 /mnt/test/ost0 > > when I cd to /mnt/test/ost0 I get > > Not a directory messages ??? > > If I do a df I can see the filesystems mounted. > > When I look at /var/log/messages I can see > > > Oct 26 09:33:40 fraggle kernel: Lustre: Filtering OBD driver; > [EMAIL PROTECTED] > Oct 26 09:33:40 fraggle kernel: Lustre: testfs-OST0000: new disk, initializing > Oct 26 09:33:41 fraggle kernel: Lustre: OST testfs-OST0000 now serving dev > (testfs-OST0000/01493618-db27-ba73-4d41-6ab062fa5355) with recovery enabled > Oct 26 09:33:41 fraggle kernel: Lustre: Server testfs-OST0000 on device > /dev/sdb2 has started > Oct 26 09:33:43 fraggle kernel: Lustre: testfs-OST0000: received MDS > connection from [EMAIL PROTECTED] > Oct 26 09:33:43 fraggle kernel: Lustre: MDS testfs-MDT0000: > testfs-OST0000_UUID now active, resetting orphans > > > ???? This is driving me nuts ??? > > > > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > > SCRI, Invergowrie, Dundee, DD2 5DA. > The Scottish Crop Research Institute is a charitable company limited by > guarantee. > Registered in Scotland No: SC 29367. > Recognised by the Inland Revenue as a Scottish Charity No: SC 006662. > > > DISCLAIMER: > > This email is from the Scottish Crop Research Institute, but the views > expressed by the sender are not necessarily the views of SCRI and its > subsidiaries. This email and any files transmitted with it are confidential > to the intended recipient at the e-mail address to which it has been > addressed. It may not be disclosed or used by any other than that addressee. > If you are not the intended recipient you are requested to preserve this > confidentiality and you must not use, disclose, copy, print or rely on this > e-mail in any way. Please notify [EMAIL PROTECTED] quoting the > name of the sender and delete the email from your system. > > Although SCRI has taken reasonable precautions to ensure no viruses are > present in this email, neither the Institute nor the sender accepts any > responsibility for any viruses, and it is your responsibility to scan the > email > and the attachments (if any). > > > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
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