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Disaster recovery: what do i need to restore 'system' backup

Posted on 2005-03-04
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Dear All

This is a follow on frmo another question really

(http://www.experts-exchange.com/Hardware/Q_10868341.html?query=&clearTAFilter=true)

What we have is this: a dell poweredge 2600 with three scsi 36GB configured in raid 5
We back up to DDS4 tape using backup exec 8.6; we do not have one button disaster recovery or open files option

Now if we lost the drives to this machine for some reason but the machine itself was still sound the  backup would be OK i think

We would buy three more drives recongifure the RAID array, install the OS (w2k server), install drivers, install Vertias BE 8.6, and then restore both the 'system' and then the data.

(Please let me know if this is wrong)

But what if the machine is 'wasted'. We have got a Power edge 2400 which i bought for a snip from ebay. It has three scsi 8GB disks (not configures as RAID) and the correct OS.

These are my questions

a/ assuming i can but a dds 4 drive and i put in my system backup tape, what will be restored: registry, user database, services configuration (eg DNS, DHCP...)? what about drivers: will these be overwritten? Remember i am not restoring to an identical machine so this would not be wanted.

b/ the machine i bought has this

integrated Adaptec AIC-7880 Ultra/Wide SCSI host adapter supporting up to three SCSI devices in externally accessible front bays, implemented as Ultra/Narrow. (taken from http://support.dell.com/support/edocs/systems/sigu/en/ug/techspec.htm)

One of these is a SCSI CD

Of course, i cannot find a narrow scsi  DDS drive. can i get wide scsi dds drive and some sort of adaptor to transfer the wide of the dds to the narrow of the machine?

Regards

Jonny
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Question by:shimshun
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samccarthy earned 1000 total points
ID: 13459478
Yes, you are correct.   Say you lost all your drives.  Put in new ones, make the Raid Array, load the OS, Drivers and Veritas and then do a complete restore.  That will work.

OK, if your motherboard fries say in the old box.  Doing a restore to a box with different hardware can really be a disaster.  In that case, load the OS, Drivers and all the applications just as they were on the old machine.  Then restore only the Data to the new one.  By loading everything, you get all your system modifications and registry settings correct and then it is just a matter of laying down the data.

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by:shimshun
ID: 13474366
So, from what you are saying the standby server needs to be the same hardware as the old server?

So assume that on the standby server i have w2k installed and Veritas and i have a the correct type of dds drive(!), how do i ensure that i restore Active Directory, the DNS service , the dhcp service etc as well as the data?

Jonny
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by:samccarthy
ID: 13476013
Yes, so that all your drivers and hardware configurations will drop right back on the new box without problems.  When you restore the System State, all that will come over.
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