Showing posts with label ibm. Show all posts
Showing posts with label ibm. Show all posts

Friday, March 9, 2012

Hardware Configuration

I'm currently rebuilding an IBM server that I'd like to use as a SQL 7.0
database server. Two items I'd like some feedback on: when creating a new
volume (it's Windows 2000 Server) to host the databases, how important is
cluster (i.e. allocation unit) size? The volume I've created is 25 Gb.
Second, I'm using a RAID controller with hard drives which support
write-caching, with the two options being write-through and write-back. I
understand write-caching isn't the most desirable thing with SQL? Any and
all input on this is much appreciated.
steve.Steve,
In general, if the hard disk of the computer has a write-caching disk
controller, disable it. Unless a write-caching disk controller is designed
specifically for a database (basically battery-backed), it can seriously
threaten SQL Server data integrity.
hth
Quentin
"molsonexpert" <imdrunk@.work.ca> wrote in message
news:uKwLOyisEHA.2788@.TK2MSFTNGP09.phx.gbl...
> I'm currently rebuilding an IBM server that I'd like to use as a SQL 7.0
> database server. Two items I'd like some feedback on: when creating a new
> volume (it's Windows 2000 Server) to host the databases, how important is
> cluster (i.e. allocation unit) size? The volume I've created is 25 Gb.
> Second, I'm using a RAID controller with hard drives which support
> write-caching, with the two options being write-through and write-back. I
> understand write-caching isn't the most desirable thing with SQL? Any and
> all input on this is much appreciated.
> steve.
>

Hardware Configuration

I'm currently rebuilding an IBM server that I'd like to use as a SQL 7.0
database server. Two items I'd like some feedback on: when creating a new
volume (it's Windows 2000 Server) to host the databases, how important is
cluster (i.e. allocation unit) size? The volume I've created is 25 Gb.
Second, I'm using a RAID controller with hard drives which support
write-caching, with the two options being write-through and write-back. I
understand write-caching isn't the most desirable thing with SQL? Any and
all input on this is much appreciated.
steve.
Steve,
In general, if the hard disk of the computer has a write-caching disk
controller, disable it. Unless a write-caching disk controller is designed
specifically for a database (basically battery-backed), it can seriously
threaten SQL Server data integrity.
hth
Quentin
"molsonexpert" <imdrunk@.work.ca> wrote in message
news:uKwLOyisEHA.2788@.TK2MSFTNGP09.phx.gbl...
> I'm currently rebuilding an IBM server that I'd like to use as a SQL 7.0
> database server. Two items I'd like some feedback on: when creating a new
> volume (it's Windows 2000 Server) to host the databases, how important is
> cluster (i.e. allocation unit) size? The volume I've created is 25 Gb.
> Second, I'm using a RAID controller with hard drives which support
> write-caching, with the two options being write-through and write-back. I
> understand write-caching isn't the most desirable thing with SQL? Any and
> all input on this is much appreciated.
> steve.
>

Hardware Configuration

I'm currently rebuilding an IBM server that I'd like to use as a SQL 7.0
database server. Two items I'd like some feedback on: when creating a new
volume (it's Windows 2000 Server) to host the databases, how important is
cluster (i.e. allocation unit) size? The volume I've created is 25 Gb.
Second, I'm using a RAID controller with hard drives which support
write-caching, with the two options being write-through and write-back. I
understand write-caching isn't the most desirable thing with SQL? Any and
all input on this is much appreciated.
steve.Steve,
In general, if the hard disk of the computer has a write-caching disk
controller, disable it. Unless a write-caching disk controller is designed
specifically for a database (basically battery-backed), it can seriously
threaten SQL Server data integrity.
hth
Quentin
"molsonexpert" <imdrunk@.work.ca> wrote in message
news:uKwLOyisEHA.2788@.TK2MSFTNGP09.phx.gbl...
> I'm currently rebuilding an IBM server that I'd like to use as a SQL 7.0
> database server. Two items I'd like some feedback on: when creating a new
> volume (it's Windows 2000 Server) to host the databases, how important is
> cluster (i.e. allocation unit) size? The volume I've created is 25 Gb.
> Second, I'm using a RAID controller with hard drives which support
> write-caching, with the two options being write-through and write-back. I
> understand write-caching isn't the most desirable thing with SQL? Any and
> all input on this is much appreciated.
> steve.
>