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SAN Connectivity Issue



SAN Connectivity Issue Mark
3/25/2005 2:11:03 PM
sql server connect: I have SQL 2000 SP3a EE on Compaq hardware. I have all user data and system
data on SAN Drives. I am noticing that even though SQL Server is set up as
automatic on start up still it doesn't stat the server automatically. I have
to manually start SQL Server service after the machine is booted up. In the
event log it shows that it had difficulties in finding SAN Drives though the
drives existed. After the boot up, I start SQL Server manually and see no
issues in starting up.

Has anyone sees this kind of issue and if so, what were the steps to resolve
this.

Re: SAN Connectivity Issue Mike Epprecht (SQL MVP)
3/26/2005 12:11:36 AM
Hi

Looks like a Hardware/Driver issue. The fact that SQL Server can not find
the drives means that the OS has not presented them to SQL Server. Probably
it takes a bit long to find them, by then it is SQL Server's turn to be
started up as a service, and since the drives are not online, SQL Server
aborts.

Regards
--------------------------------
Mike Epprecht, Microsoft SQL Server MVP
Zurich, Switzerland

IM: mike@epprecht.net

MVP Program: http://www.microsoft.com/mvp

Blog: http://www.msmvps.com/epprecht/

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Re: SAN Connectivity Issue Mark
3/28/2005 8:23:05 AM
Hi Mike:

I don't think that it is a driver issue. If drivers are bad then drives
shouldn't come back at all. The fact is drives do come back after OS is fully
started and then when I start SQL Server manually, it works fine. I agree
that something is wrong with the Drives to be shown up during OS and since
drives are not present, SQL doesn't start. Problem is drives do come when I
look for them after OS is fully started so I am unsure as to what part of
software needs to be fixed.

-Mark

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Re: SAN Connectivity Issue Mike Epprecht (SQL MVP)
3/28/2005 7:49:17 PM
Hi

It is not SQL Server. Next time, do not log onto the box, but start the
services manually though services applet on another computer (right click on
the local service and select connect to another computer...). If it fails,
then there is some dependency on you having to log in to get the drive to be
available.

Regards
--------------------------------
Mike Epprecht, Microsoft SQL Server MVP
Zurich, Switzerland

IM: mike@epprecht.net

MVP Program: http://www.microsoft.com/mvp

Blog: http://www.msmvps.com/epprecht/

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Re: SAN Connectivity Issue Derrick Leggett
4/7/2005 11:27:08 PM
Go to Administrative Tools/Services and setup automatic recovery for
MSSQLSERVER. Set it to restart after the first failure. Have it wait for 1
minute. See if that temporarily fixes the issue while you get the SAN issue
fixed. What type of SAN and fiber cards are you using? What version of
drivers do you have for the fiber cards?

You have any errors in the system event log?


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