Networker

Re: [Networker] expansion plans

2002-10-24 11:56:14
Subject: Re: [Networker] expansion plans
From: "Maarten Boot (CWEU-USERS/CWNL)" <Maarten.Boot AT NL.COMPUWARE DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Thu, 24 Oct 2002 17:47:32 +0200
The initial population cannot be done over Internet or Wan as it can
take easy 10 hours or more with low line speeds,

maarten

Terry Lemons wrote:
>
> Very cool!  Thanks, Wes, for illuminating this!
> tl
>
> -----Original Message-----
> From: Wes Ono [mailto:wono AT LEGATO DOT COM]
> Sent: Thursday, October 24, 2002 11:33 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Re: [Networker] expansion plans
>
> Another useful NetWorker Laptop feature is SendOnce technology.  (I call it
> duplicate file elimination.)  Laptop checks the date and size and a checksum
> for each file.  If the same file has been backed up from some other system,
> then it won't back up the file again.
>
> So most of the O/S files (ntoskrnl.exe, shell32.dll) and a lot of
> application files (e.g., Microsoft Office executables) are only backed up
> from the first system.  You can "seed" the NetWorker Laptop server by first
> backing up a machine on the LAN.  Then the mobile machines won't have to
> back up these files at all.
>
> Wes
>
> -----Original Message-----
> From: Terry Lemons [mailto:lemons_terry AT EMC DOT COM]
> Sent: Thursday, October 24, 2002 10:22 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Re: [Networker] expansion plans
>
> Hi Steve
>
> In my experience, desktop workstations are not backed up; all important data
> created on these workstations are written to and accessed from network file
> shares hosted by file servers, most likely via CIFS or NFS.  Only the file
> servers holding your critical data are backed up.  There shouldn't be any
> important or unique information in these workstations.  If a disk becomes
> corrupted, the operating system can be re-installed or re-applied from a
> Ghost image or other bare-metal recovery agent like NetWorker Recovery
> Manager.
>
> Mobile system are another story.  You'd want to have a utility that would do
> automated backups when the user connects to the network from their motel
> room.  Good laptop backup tools will compress the data stream, and even
> backup only the blocks that have changed, instead of entire files.  These
> features make the most of the usually-small communications link, although
> LAN connections in the better motel chains are becoming more common.  If you
> want to stay with a Legato product, check out NetWorker Laptop, which seems
> to have these features.
>
> I'd focus on figuring out how much data these 3,000 Windows clients will
> generate, and size your file server disk capacity accordingly.  Then, deploy
> a storage-area network, attaching your file servers, storage arrays, and
> tape drives to it.  Create a SAN-based backup solution, and making sure you
> have enough backup capacity to meet your needs.  Consider using Serial ATA
> and lower cost Fibre Channel disks for backups instead of tapes, and use
> tapes only for archiving.  With disks, you can do things that tapes can't do
> (like snapshots, mirrors, clones and array-to-array copies).  Backup vendors
> are beginning to treat these storage entities (ex., snapshots) as a
> different form of backups, joining the traditional saveset (backup
> container) form of backup.
>
> Great question!  Hope this helps.
>
> tl
>
> Terry Lemons
> CLARiiON Application Solutions Engineering
>         EMC²
> where information lives
>
> 4400 Computer Drive, MS D239
> Westboro MA 01580
> Phone: 508 898 7312
> Email: Lemons_Terry AT emc DOT com
>
> -----Original Message-----
> From: Steve Lee [mailto:lee AT SJU DOT EDU]
> Sent: Thursday, October 24, 2002 10:41 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: [Networker] expansion plans
>
> Hi. I have been using Networker to backup 20 Solaris clients for a few
> years. We have one library, do a little manual cloning, a very vanilla
> setup. I have been asked to plan for backing up 3,000 windows clients next
> year. These are desktops and laptops running 98, 2000, XP.
>
> Do I just order a JUMBO library, 3,000 client licenses and hope for the
> best? Is anyone working in a similar environment willing to share
> experiences? I'm comfortable with Networker and Solaris but if I need to go
> to a different platform or a different software so be it.
>
> I welcome all suggestions.
>
> Regards,
> Steve
>

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