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WHS backing up huge drives & stuff RRS feed

  • Question

  • Hello all, I'm new here and new to WHS, sorry if these questions prove that and have been asked before:
    attempting to backup my home office computer: about 2.5TB of data. Every time the backup fails I've got to start from scratch.
    I have a few questions:
    1) WHY, WHY oh WHY: why microsoft, WHYYYY?
    Sorry: just had to get that off my chest
    2)Is there a way to break it down so at least 48 hours later I've got SOMETHING backed up?
    3)last night backup failed with "reason 3".  This morning I noticed that I had service pack 3, whereas I didn't yesterday.  Is it possible that the server did a windows update (its set to automatic) in the middle of a backup (in which case microsoft please see question 1)
    4) should the server be on the same workgroup as other computers on network?
    5) how long should 2.5 TB take to backup? I've got the OS installed on one of the faster disks, Si Sandra reports 66MB/s network connection between the 2 machines, but the write speeds on the WHS will bottleneck that.  I'm guessing my theoretical max is about 20MB/sec which gives 34 hours. Is it possible its only backing up at 10MB/sec? THe resource monitor on the windows 7 source machine is showing network activity peaking at only 1Mbit/s.  Grr. 

    thanks

    EDIT:ps can I put in a request for  a little line spacing on the forum? ANyone else find it tiring on the eyes?
    • Changed type getho Sunday, March 14, 2010 12:36 AM
    Sunday, March 14, 2010 12:35 AM

Answers

  • 2. Umm, 2.5 TB, if it's all new to your servert's backup database, is going to take a very long time. And 1., that's just the way it is.

    3. If a service pack installs on the client, it will probably force a reboot. And no, backup won't stop a reboot. Pretty much nothing will stop a reboot once it's actually been triggered. See my answer to question 1 for why...

    4. Doesn't matter. The only difference is that the server will appear by default in "Network Neighborhood" if it's in the same workgroup.

    5. is the same as 2. really. A very long time. It's possible it's backing up an average of 1-2 MB/s.

    Line spacing: I don't have any trouble hitting the Enter key.
    I'm not on the WHS team, I just post a lot. :)
    Sunday, March 14, 2010 4:04 AM
    Moderator

All replies

  • 2. Umm, 2.5 TB, if it's all new to your servert's backup database, is going to take a very long time. And 1., that's just the way it is.

    3. If a service pack installs on the client, it will probably force a reboot. And no, backup won't stop a reboot. Pretty much nothing will stop a reboot once it's actually been triggered. See my answer to question 1 for why...

    4. Doesn't matter. The only difference is that the server will appear by default in "Network Neighborhood" if it's in the same workgroup.

    5. is the same as 2. really. A very long time. It's possible it's backing up an average of 1-2 MB/s.

    Line spacing: I don't have any trouble hitting the Enter key.
    I'm not on the WHS team, I just post a lot. :)
    Sunday, March 14, 2010 4:04 AM
    Moderator
  • thanks
    ANyone got an anwser to 2? Can I break it down?

    On a separate note: its going to get more and more common that people will have this amount of data to backup. Hey microsoft! You need to
    1) enable failed backups to resume.  I know it wont be easy, but if you try really hard you'll find a way
    2) give people more info on progress. 
    3) give people more feedback on where their backup bottlekneck might be

    WHS has great potential, very impressive how easy it is to get the basics working, but the devil as always is in the details.
    Sunday, March 14, 2010 6:20 AM
  • thanks
    ANyone got an anwser to 2?

    Ken already gave you a basic answer.  It depends on how fast your network is, but with 2.5 TB of data, it's going to take quite a while no matter how fast your network is.  If you were able to transfer data to your server 1 Gb/s - the current maximum for consumer-grade equipment, it would take 5 1/2 hours (and there is no way you'll ever get close to that speed due to other bottlenecks, i.e. hard drive write speeds).  Just as I guess, I would say a realistic time would be 24-36 hours (and that's assuming your network is Gb LAN).

    Can I break it down?

    The only way to "break it down" is by temporarily moving files off of your client, backing up what's left, then add the other files back and back it up again.  (And, at 2.5 TB, I would have to bet a good chunk of that is videos.  If you put those in the Videos share on the server, you won't have to back them up at all.)

    On a separate note: its going to get more and more common that people will have this amount of data to backup. Hey microsoft! You need to
    1) enable failed backups to resume.  I know it wont be easy, but if you try really hard you'll find a way
    2) give people more info on progress. 
    3) give people more feedback on where their backup bottlekneck might be

    WHS has great potential, very impressive how easy it is to get the basics working, but the devil as always is in the details.

    Sunday, March 14, 2010 6:38 AM
    Moderator
  • yeah I thought that would be a realistic time, but its about twice as slow on a gigabit network. (up to 18% in 13 hours). Have no idea where to look for the bottleneck (I've checked the connection speed with sisandra, Its reading off an SSD and a raid to 7,200 rpm disks, ho hum.

    Thanks for the suggestion about breaking it down: please understand I'm not having a go at you kind people who have taken the time and energy to write back to me, this is entirely directed at microsoft: that's bottom thumpingly insane (I mean cant I at least backup my drives separately, or select folders?).  Maybe I should just use backup software and the server as a great big hard drive.

    No videos at all, 8 years worth of client files and many many multilayer 16 bit photoshop files.
    Sunday, March 14, 2010 9:07 AM
  • getho -

    I'd stick with that full backup, give it at least one more try.  It can be a pain in the butt, especially that first one, but after that, it's so much faster.  I agree with you that it'd be nice to be able to resume backups.  Maybe we'll see that in the future.  That said, once you get that first one done, they seem to be pretty reliable and much faster.
    Sunday, March 14, 2010 8:38 PM
  • Are you using mutliple partitions?  If so you can break the first full backup into chunks.  First configure drive C: for the backup, do a full backup, then configure the backup for an additional drive letter (partition) and do another backup, and so on until you have all your drive paritions added.
    --
    Sunday, March 14, 2010 8:42 PM
  • Personally, I would expect 2.5 TB of data to take a couple of days to back up, at a minimum. (Probably more, tbh...)
    I'm not on the WHS team, I just post a lot. :)
    Sunday, March 14, 2010 8:50 PM
    Moderator
  • thanks for all the input!  Good to know its not a problem as such thats making it slow - but on that score got up this morning and my status was "backed up" (which means it did 2.5tb in less than 24 hours), so something happened overnight to speed things up (my guess is that backing up the raid was much quicker than the SSD - the raid is formatted with big chunks).  I also switched off automatic updates on the server (not set to auto on the source machine), switched off all the powers saving features on both machines.

    now next question is how to go about swapping out a small drive in the server for a big one? will acronis do the job?
    Sunday, March 14, 2010 10:55 PM
  • thanks for all the input!  Good to know its not a problem as such thats making it slow - but on that score got up this morning and my status was "backed up" (which means it did 2.5tb in less than 24 hours), so something happened overnight to speed things up (my guess is that backing up the raid was much quicker than the SSD - the raid is formatted with big chunks).  I also switched off automatic updates on the server (not set to auto on the source machine), switched off all the powers saving features on both machines.

    now next question is how to go about swapping out a small drive in the server for a big one? will acronis do the job?
    Just add the new (bigger) drive to the storage pool, then remove the old (smaller) drive from the pool.
    • Proposed as answer by Z-Ice Monday, March 15, 2010 5:00 AM
    Sunday, March 14, 2010 11:36 PM
    Moderator
  • If you had partial backups, they will actually have been retained as long as you didn't delete them. The data actually backed up prior to failure/termination of the backup will already have been in the backup database. So you probably had 3-4 days of backing up for that PC...
    I'm not on the WHS team, I just post a lot. :)
    • Proposed as answer by Z-Ice Monday, March 15, 2010 5:00 AM
    Monday, March 15, 2010 2:39 AM
    Moderator