How does SAN get its performance without using write cache? If it does use
write chace, how is it safer than suing a cacheing controller that would some
with a RAID subsustem such as a Dell Powervault?The host bus adapters that connect your servers to the SAN will typically
have a hefty cache on them, just like in a DAS environment.
mb
"Jeffrey K. Ericson" wrote:
> How does SAN get its performance without using write cache? If it does use
> write chace, how is it safer than suing a cacheing controller that would some
> with a RAID subsustem such as a Dell Powervault?|||Controllers in a SAN do usually implement write-cacheing. Normally a SAN
requires a UPS backup so that writes can be guaranteed in the event of a
power failure.
--
David Portas
SQL Server MVP
--
Showing posts with label suing. Show all posts
Showing posts with label suing. Show all posts
Saturday, February 25, 2012
SAN Performance
How does SAN get its performance without using write cache? If it does use
write chace, how is it safer than suing a cacheing controller that would som
e
with a RAID subsustem such as a Dell Powervault?The host bus adapters that connect your servers to the SAN will typically
have a hefty cache on them, just like in a DAS environment.
mb
"Jeffrey K. Ericson" wrote:
> How does SAN get its performance without using write cache? If it does us
e
> write chace, how is it safer than suing a cacheing controller that would s
ome
> with a RAID subsustem such as a Dell Powervault?|||Controllers in a SAN do usually implement write-cacheing. Normally a SAN
requires a UPS backup so that writes can be guaranteed in the event of a
power failure.
David Portas
SQL Server MVP
--
write chace, how is it safer than suing a cacheing controller that would som
e
with a RAID subsustem such as a Dell Powervault?The host bus adapters that connect your servers to the SAN will typically
have a hefty cache on them, just like in a DAS environment.
mb
"Jeffrey K. Ericson" wrote:
> How does SAN get its performance without using write cache? If it does us
e
> write chace, how is it safer than suing a cacheing controller that would s
ome
> with a RAID subsustem such as a Dell Powervault?|||Controllers in a SAN do usually implement write-cacheing. Normally a SAN
requires a UPS backup so that writes can be guaranteed in the event of a
power failure.
David Portas
SQL Server MVP
--
SAN Performance
How does SAN get its performance without using write cache? If it does use
write chace, how is it safer than suing a cacheing controller that would some
with a RAID subsustem such as a Dell Powervault?
The host bus adapters that connect your servers to the SAN will typically
have a hefty cache on them, just like in a DAS environment.
mb
"Jeffrey K. Ericson" wrote:
> How does SAN get its performance without using write cache? If it does use
> write chace, how is it safer than suing a cacheing controller that would some
> with a RAID subsustem such as a Dell Powervault?
|||Controllers in a SAN do usually implement write-cacheing. Normally a SAN
requires a UPS backup so that writes can be guaranteed in the event of a
power failure.
David Portas
SQL Server MVP
write chace, how is it safer than suing a cacheing controller that would some
with a RAID subsustem such as a Dell Powervault?
The host bus adapters that connect your servers to the SAN will typically
have a hefty cache on them, just like in a DAS environment.
mb
"Jeffrey K. Ericson" wrote:
> How does SAN get its performance without using write cache? If it does use
> write chace, how is it safer than suing a cacheing controller that would some
> with a RAID subsustem such as a Dell Powervault?
|||Controllers in a SAN do usually implement write-cacheing. Normally a SAN
requires a UPS backup so that writes can be guaranteed in the event of a
power failure.
David Portas
SQL Server MVP
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