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4k disk formatting and more.. RRS feed

  • Question

  • Hi,

    I only recently and too late discovered that the new generation of WD disks use 4k blocks instead of 512. The product code differs in one letter and with a lower price and larger buffer I aquired three 2TB units. I only realize now that this is not supported by WHS. Still, I am up and running, even with the WHS partition on one of them.

    So it actually does work, but probably causes the system to slow down, particularly during large file transfers. Speed varies from 10 to 80 MB/s. And at times complete standstill for 20 secs in file manager. Otherwise I do not get any indication that things are not what they should.

    A hard learned lesson with WHS is to stay away from anything not supported. So I need to apply a jumper and start all over. For the data disks of course no problem and I understand from the threads in this forum that there is a way of cloning the system disk. But I don't want that. Rather I will do a reinstall. I plan to take out the disk, put the jumper in place, reformat it on a client and put it back for reinstall.

    My question is the following.

    Given that all folders are duplicated, will the reinstall take care of the data partition on the system disk? Or will I have to put it aside and reload it after system regeneration?

    I know that this topic is treated in depth elsewhere in this forum, but with all the ifs and buts I would appreciate any reaction to this.

    Thank you.

     

    Wednesday, September 15, 2010 8:11 AM

Answers

  • If you have significant data on your server, backing the shares up to external storage and starting from scratch is likely to be a faster (and safer) alternative. Or, as an alternative to backing up/restoring, see this FAQ.

    There's no way to offload the data partition on the system drive.


    I'm not on the WHS team, I just post a lot. :)
    • Proposed as answer by kariya21Moderator Saturday, September 18, 2010 4:15 PM
    • Marked as answer by hauge48 Sunday, September 19, 2010 10:34 AM
    Friday, September 17, 2010 12:24 PM
    Moderator

All replies

  • You should read Western Digital's information about these drives to start. Then, apparantly some users have been successful with the WDAlign utility, using the version that can be booted from a CD. Give that a try before you rebuild your server.
    I'm not on the WHS team, I just post a lot. :)
    Wednesday, September 15, 2010 12:25 PM
    Moderator
  • Amazing thread.

    http://forum.wegotserved.com/index.php/topic/11681-wd-green-2tb-drives-should-we-use-wd-align/

    Yes, WDAlign is the way forward, jumpering cannot be used on a multipartion drive. It's only that this should have been done just after reinstallation. At present I have 73% fill on my 2TB system drive and from what I read that could easily take several days to complete. Any stop is likely make the drive unaccessible. That would mean a fresh install and loss of >1TB data (unless I am saved by the duplication).

    So I am looking for a way to offload the data partition on the system drive. Is this feasible? Can I delete the data on D: partiton, WDalign C: and leave it to demigrator to recreate the D:partition?

    Once I have been aware of what the read-after-write does to system performance I am surprized thet the system works at all. It surely explains the warnings I get in the logs these days.

    Friday, September 17, 2010 10:46 AM
  • If you have significant data on your server, backing the shares up to external storage and starting from scratch is likely to be a faster (and safer) alternative. Or, as an alternative to backing up/restoring, see this FAQ.

    There's no way to offload the data partition on the system drive.


    I'm not on the WHS team, I just post a lot. :)
    • Proposed as answer by kariya21Moderator Saturday, September 18, 2010 4:15 PM
    • Marked as answer by hauge48 Sunday, September 19, 2010 10:34 AM
    Friday, September 17, 2010 12:24 PM
    Moderator
  • I am half way there, that is I got the C: partition aligned but the WDAlign will not do its thing on the D: partition on the system drive. No explaination as to why. 

    I do not want to keep on experimenting on my WHS - after all the system responsiveness is OK now. But I have a PC I could use for further testing. Do I have to buy a new lisence for this or can I have a double installation on the single lisence.

    Sunday, September 19, 2010 10:34 AM
  • Your product key is tied to a single installation. For a relatively short period of time (30 days max) you can install on other hardware; just don't activate it.
    I'm not on the WHS team, I just post a lot. :)
    Sunday, September 19, 2010 12:18 PM
    Moderator
  • So if I want 50 days I need to install again from scratch, or do a reinstallation, or not possible at all?

    Sunday, September 19, 2010 4:59 PM
  • I believe it's a hard kill switch at 30 days. You would have to reinstall
    Monday, September 20, 2010 8:59 PM