Re: [lustre-discuss] Convert a disk from lustre to ext4
Maybe, it's anyhow too late, but I have found this thread in my unread mail: On 09/01/2015 06:38 PM, Colin Faber wrote: > If you're just looking to reformat the drive, then just reformat the drive: > > http://linux.die.net/man/8/mkfs.ext4 It's still unclear what he actually did. Maybe he formatted as ldiskfs and used the disk as if it were ext4? Then, it might even be mountable as ext4, at least if the e2fstools are installed. Anyhow, I would recommend to backup the data (if there is anything useful on the device already) on a different device, then reformat the drive and restore the files on it. and from an earlier mail on this topic: On 08/24/2015 08:07 PM, E.S. Rosenberg wrote: > What's wrong with plain ext4? > Or XFS, btrfs etc. > > If you want good support on Windows you're stuck with windows filesystems > ((ex)FAT, NTFS), though there are tools to mount extX filesystems on > windows they aren't all that stable as far as I know (though I haven't > looked at that for years so things may have changed). maybe using a NAS box which exports a file system via NFS and SMB is what you are looking for. It's connected via ethernet, however and Windwos can mount it as so-called Network Drive. Linux and MAC support both, NFS and SMB more or less, depending on the version of OS. If you go out to buy such a box, I would recommend to look for a solution based on a RAID system. The very low-price end is based on single disks which, might not be a good idea for long term storage. A RAID system (excpet for RAID0) has built-in redundancy, so that disks may fail and you still can recover the data. regards, Martin smime.p7s Description: S/MIME Cryptographic Signature ___ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
Re: [lustre-discuss] Convert a disk from lustre to ext4
If you're just looking to reformat the drive, then just reformat the drive: http://linux.die.net/man/8/mkfs.ext4 If this drive is an OST, or part of an existing file system you'll need to follow this procedure: https://build.hpdd.intel.com/job/lustre-manual/lastSuccessfulBuild/artifact/lustre_manual.xhtml#section_k3l_4gt_tl -cf -cf On Tue, Sep 1, 2015 at 9:40 AM, Michael Parchet wrote: > Hello, > > I have a single external drive formatted with the lustre file format. I > just would like to convert it in a free and open source file format like > ext4. > > Is it possible ? > > Thanks for your support > > Best regards > > mparchet > > > > Le 1 sept. 2015 à 16:54, Colin Faber a écrit : > > Hi, > > It's not totally clear what you're trying to accomplish here? The block > device(s) utilized by lustre contain a proprietary disk format / layout > specific to lustre file systems. > > Are you trying to convert this over (with objects) intact? If so why? > > Or are you trying to migrate existing data from your lustre file system > over to some other (single disk) solution ? > > -cf > > > On Tue, Sep 1, 2015 at 6:40 AM, Michael Parchet > wrote: > >> Hello, >> >> I would like to convert my external drive format with listre file system >> to stardard ext4 file system without loss data storage on my external drive. >> >> Is it possible ? >> >> Thanks for your support >> >> Best regards >> >> mparchet >> ___ >> lustre-discuss mailing list >> lustre-discuss@lists.lustre.org >> >> https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.lustre.org_listinfo.cgi_lustre-2Ddiscuss-2Dlustre.org&d=AwICAg&c=IGDlg0lD0b-nebmJJ0Kp8A&r=x9pM59OqndbWw-lPPdr8w1Vud29EZigcxcNkz0uw5oQ&m=FS52HCGWzUMtB4qeOuLypEghM731Yp6OCbOhICoVR70&s=UMWAb6xMu2izyP5KRISCPf4xV9GgmSZz74ffJC2QfsU&e= > > > ___ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
Re: [lustre-discuss] Convert a disk from lustre to ext4
Hi, It's not totally clear what you're trying to accomplish here? The block device(s) utilized by lustre contain a proprietary disk format / layout specific to lustre file systems. Are you trying to convert this over (with objects) intact? If so why? Or are you trying to migrate existing data from your lustre file system over to some other (single disk) solution ? -cf On Tue, Sep 1, 2015 at 6:40 AM, Michael Parchet wrote: > Hello, > > I would like to convert my external drive format with listre file system > to stardard ext4 file system without loss data storage on my external drive. > > Is it possible ? > > Thanks for your support > > Best regards > > mparchet > ___ > lustre-discuss mailing list > lustre-discuss@lists.lustre.org > > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.lustre.org_listinfo.cgi_lustre-2Ddiscuss-2Dlustre.org&d=AwICAg&c=IGDlg0lD0b-nebmJJ0Kp8A&r=x9pM59OqndbWw-lPPdr8w1Vud29EZigcxcNkz0uw5oQ&m=FS52HCGWzUMtB4qeOuLypEghM731Yp6OCbOhICoVR70&s=UMWAb6xMu2izyP5KRISCPf4xV9GgmSZz74ffJC2QfsU&e= ___ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
[lustre-discuss] Convert a disk from lustre to ext4
Hello, I would like to convert my external drive format with listre file system to stardard ext4 file system without loss data storage on my external drive. Is it possible ? Thanks for your support Best regards mparchet ___ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
