+ Post New Thread
Results 1 to 10 of 10
Wireless Networks Thread, Backup Annoyance in Technical; We have 2 servers (smallish primary school) and make backups weekly on to tapes (4 for each server). Only problem ...
  1. #1
    button_ripple's Avatar
    Join Date
    Dec 2007
    Location
    Luton
    Posts
    346
    Thank Post
    93
    Thanked 20 Times in 18 Posts
    Rep Power
    17

    Backup Annoyance

    We have 2 servers (smallish primary school) and make backups weekly on to tapes (4 for each server). Only problem is the entire network almost freezes whilst the servers are backing up. The servers are both brand new and we are using the built-in backup facility as we don't have any spare budget for software.

    Both servers continue functioning and there is little activity during the time of the backups (this includes network activity) but everything just stops except the servers.

    What is going on??

    This does need to be fixed because every Friday the entire network stops for 3-5 hours!

  2. #2
    sharkster's Avatar
    Join Date
    Nov 2007
    Location
    Middlesbrough
    Posts
    149
    Thank Post
    23
    Thanked 26 Times in 21 Posts
    Rep Power
    18
    cant you set the backup automaticly and do it during the weekend whilst the school is empty?

  3. #3

    elsiegee40's Avatar
    Join Date
    Jan 2007
    Location
    Kent
    Posts
    10,701
    Thank Post
    1,783
    Thanked 2,168 Times in 1,603 Posts
    Rep Power
    769
    Quote Originally Posted by sharkster View Post
    cant you set the backup automaticly and do it during the weekend whilst the school is empty?
    Not that easy if you have to do tape changes.

    I'd negotiate the price of a networkable hard-drive and schedule overnight or weekend backups to that. Our 2TB LaCie cost just over 500, I think

  4. #4

    witch's Avatar
    Join Date
    Nov 2005
    Location
    Dorset
    Posts
    11,106
    Thank Post
    1,363
    Thanked 2,317 Times in 1,630 Posts
    Rep Power
    693
    I work in a middle/primary and we use the built-in backup facility on the server. But we have ours set to back up some drives once a week and others on alternate days. We have made sure that we are not backing up anything that is not really necessary and have got it down to one tape. So now the backup is scheduled for the evening when everyone has gone home

  5. #5
    GlennT's Avatar
    Join Date
    Sep 2006
    Location
    Zummmerzet!
    Posts
    249
    Thank Post
    19
    Thanked 17 Times in 16 Posts
    Rep Power
    19
    Do you mean that the desktops cannot communicate with the servers whilst the servers are being backed up?
    I have seen this happen before after a replacement server got installed. The nic was a gigabit card that did not seem compatible with the switch. Knocking it down to 100mb corrected the problem [however, depending on the switch, you may want to make the changes there].

  6. #6
    button_ripple's Avatar
    Join Date
    Dec 2007
    Location
    Luton
    Posts
    346
    Thank Post
    93
    Thanked 20 Times in 18 Posts
    Rep Power
    17
    Quote Originally Posted by GlennT View Post
    Do you mean that the desktops cannot communicate with the servers whilst the servers are being backed up?
    I have seen this happen before after a replacement server got installed. The nic was a gigabit card that did not seem compatible with the switch. Knocking it down to 100mb corrected the problem [however, depending on the switch, you may want to make the changes there].

    The desktops and laptops can still access the server, but very slowly. It's like the servers are taking all the power for the backups - but are not reporting that they are using a lot of power.

    The servers have been in about 2 months now and it has only started happening about 5 weeks ago. But no real changes have happened to the servers in that time

  7. #7

    dhicks's Avatar
    Join Date
    Aug 2005
    Location
    Knightsbridge
    Posts
    5,618
    Thank Post
    1,230
    Thanked 776 Times in 673 Posts
    Rep Power
    235
    Quote Originally Posted by button_ripple View Post
    It's like the servers are taking all the power for the backups - but are not reporting that they are using a lot of power.
    How do you mean by "power"? A disk copy/backup operation shouldn't take much CPU time, it's more likly you're having trouble with the harddrive being overworked for some reason (spending too much time reading data for the backup device instead of doing what people want it to do?).

    How are the harddrive and tape device attached to the motherboard - SATA, SCISI, what? Does the disk controller have any kind of cache on it, are you using a RAID device of some kind? Is the backup process set to "high priority"?

    --
    David Hicks

  8. #8

    elsiegee40's Avatar
    Join Date
    Jan 2007
    Location
    Kent
    Posts
    10,701
    Thank Post
    1,783
    Thanked 2,168 Times in 1,603 Posts
    Rep Power
    769
    Could this be due to the location of various things on the servers?

    Is one server being hit very hard? Would taking a shadow copy to the other server and then backing up from the shadow help?

  9. #9

    Michael's Avatar
    Join Date
    Dec 2005
    Location
    Birmingham
    Posts
    9,262
    Thank Post
    242
    Thanked 1,568 Times in 1,250 Posts
    Rep Power
    340
    @button_ripple - When you say the built-in backup facility I presume you mean NT Backup? If that's the case there's no need to buy anything else. It's more than likely capable of everything you need to accomplish when it comes to backing up or restoring data.

    One way you could halve the temporary slowness of the network is to insert Tape 1 for that particular day and schedule it to run at 10pm. When you get into work, you then insert Tape 2 so backup completes sometime in the morning.

    Do you know what the specifications are for these servers, presumably running Server 2003? And are they based on SCSI or the very least SATA? If you look at Task Manager and choose the Performance tab, how much CPU usage and Memory are you using? The more info you can provide, the more we can help

  10. #10
    torledo's Avatar
    Join Date
    Oct 2007
    Posts
    2,928
    Thank Post
    168
    Thanked 155 Times in 126 Posts
    Rep Power
    47
    Quote Originally Posted by button_ripple View Post
    We have 2 servers (smallish primary school) and make backups weekly on to tapes (4 for each server). Only problem is the entire network almost freezes whilst the servers are backing up. The servers are both brand new and we are using the built-in backup facility as we don't have any spare budget for software.

    Both servers continue functioning and there is little activity during the time of the backups (this includes network activity) but everything just stops except the servers.

    What is going on??

    This does need to be fixed because every Friday the entire network stops for 3-5 hours!
    I would repeat the questions asked by michael and dhicks, and add...

    how long are the backups taking and how much are you backing up ?

    was accessing the server from client machines a problem in the first 2 weeks of server operation ?

    try and think of any applications that have been added or modified on the server that could have triggered the problems you're having...

    most important of all, is the server running any network communications during the backup windows other than authenticating users and other routine file serving tasks ?

SHARE:
+ Post New Thread

Similar Threads

  1. Veritas Backup Exec Remote Backup
    By apeo in forum Windows
    Replies: 7
    Last Post: 20th September 2007, 10:16 PM
  2. Backup Tapes Replacement & Backup Schedules
    By robknowles in forum Hardware
    Replies: 2
    Last Post: 18th April 2007, 10:55 PM
  3. Replies: 9
    Last Post: 1st August 2006, 10:25 AM
  4. Little annoyance
    By Simcfc73 in forum Windows
    Replies: 2
    Last Post: 17th July 2006, 02:35 PM
  5. Backup Script for NT backup and Robocopy
    By ChrisH in forum Scripts
    Replies: 12
    Last Post: 20th October 2005, 01:01 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •