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About Hairlocks

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  1. Hairlocks

    Best ATX regular case for 18+ hdds?

    I recently bought one of these 20 x 3.5" hotswap bays was £250 but now is it £300 (exchange rate) can also be bough in the US if you need lots of hards drives this is the way I would go. A got forum topic about these cases is at
  2. if you want a SBS replacement smeserver can do everything for you was updated recently as well. Haven't used it myself for a few year though
  3. Hairlocks

    Duplicating low level formats

    Have you tried a simple dd from one working drive to another?
  4. Hairlocks

    Maximum number of harddisks

    what power supply have you got. Hard disks have avery high peak power draw when they are first turned on, and if they are all starting up together that could be your problem. Proper enterprise kit will power on each harddrive one after another. I have a MSI neo4 motherboard at home with 8 x 320GB disk, a 100GB root disk and a DVD drive with no problems (plus many fans and 3 TV tuners)
  5. Hairlocks

    RAID0 benchmarks with WD Ratptors

    I do notice he is comparing 1 disk to 2 disks. Not 2 disks RAID 1 with 2 disks one OS and one apps.
  6. Hairlocks

    2 computers one LVD SCSI disk array.

    Thanks, bfg9000. The term multi-initiator made my googleing much more useful.
  7. In the days of SE (single ended) and DF (differential) , the SE devices where cheaper, but the DF could use longer cables and you could connect to servers to the same disk array. Those two servers could then be in a failover cluster with the disk array being mounted on the active server. My question is can LVD SCSI have 2 servers connected to the same disk ? (Can not afford Fibre Channel SAN).
  8. Hairlocks

    Which filesystem?

    Sounds like a MythTV issue (too). It shouldn't block the interface during the delete operation. 218339[/snapback] I better clarify the mythtv issue, the fact it takes more than 1 second to delete a 2 GB file means if mythtv is recording a file at the same time the recording hicups (not all the data is written to the disk.) I see this as more of a OS/filesystem problem than a mythtv problem. The deletes happen almost instantly on XFS.
  9. Hairlocks

    Which filesystem?

    personally I use XFS. The problem with ext3 is that is has by far the worst performance of the journalling file systems, which does affect me when using mythtv (file deletes take too long). reiser4 is far too knew to know whether it is stable yet, reiser3 is probably stable enough now. JFS came from OS/2 not from AIX so needed a lot of recoding. XFS was a very simple conversion from IRIX, most the work was in writing the features needed in the linux kernel. (I believe most the added kernel features are used by all the journalling file systems.)
  10. Hairlocks

    RAID controller vs. SATA controller

    just use a normal silicon image card. And if you need RAID later on use the linux software RAID which is more than good enough for a home user,or buy hardware RAID then if you really need it.
  11. You can easily open the case anput the hard drive togerher again. like here hard drive window mod. but I have no idea how stong a magnet you need to wipe it though. At a guess the heads are not that strong (they seem quite small and feeble) so an ordinary magnet may do the top platter. If you really don't want him to get at your data, don't buy hard drives from him. Spend a little extra and get one you can RMA to the manufacturer.
  12. If your are only using windows XP then NTFS is the best filesystem of the 3. As it is only 1GB it will be easy to copy all the files of it and change it later if you need to.
  13. Hairlocks

    This is supposed to be helpful

    I think the most important think to remember is that everyone makes mistakes. Also never take just one persons opinion or website etc... on something, try to confirm it as many times a possible. Also question anything you don't believe to be correct, as they may be wrong, you maybe wrong, or there was a misunderstanding (or is maybe just a difference in opinon like the hardware/software RAID)
  14. Hairlocks

    Enlarging Linux LVM physical volume

    You got me interested so I did a bit of googling. I found the man page for pvresize which is the command you need, but at a guess this hasn't been written yet, or they don't believe they have tested it enough for everyone to use. The best place to ask would be the LVM mailing list (assuming it exists). Maybe the a recent LiveCD like knoppix may be the answer. I did find a manual work around I would suggest you have a backup first. Just out of interest., how did you expand your RAID 5 array?
  15. Hairlocks

    Archiving several GB of data

    have you looked at dar I think it does what you are after, though I have not used it myself. from the docs Slices Dar stands for Disk ARchive. From the beginning, it was designed to be able to split an archive over several pieces of removable media -- no matter how many or what size. Thus, dar is able to save over floppy disks, CD-Rs, DVD-Rs, CD-RWs, DVD-RWs, Zip disks, Jazz disks, etc. Dar is not concerned by un/mounting a removable medium; instead it operates independently of the hardware. Given the size, it will split the archive in several files (called slices), pausing before creating each new slice. This allows the user to un/mount a medium, burn the slice to a CD-R, send it by email (if your mail system does not allow huge file in emails, dar can help you here also). By default, (no size specified), dar will make only one slice. If a slice size is specified and dar creates multiple slices, the size of the first slice can be specified separately. This is useful if, for example, you want to fill up a partially filled disk before starting use of an empty one. At restoration time, dar will look for the slices it needs, asking for a slice only if it is missing and required. Direct Access Even when using compression, dar does not have to read the whole backup to extract one file. If you just want to restore one file from a huge backup, the process will be much faster than using tar. To extract one or more files, dar first reads the catalogue (i.e. the contents of the backup), then goes directly to the location of the saved files you want to restore, and proceeds with restoration. When using slices, dar will ask only for the slices containing the files to restore. You can also restore all files from an archive, in which case dar will read the slices sequentially. When doing a full restore, no slice (except the first and last slices) will be asked for more than once.