Re: Centos/Linux Disk Caching, might be OT in some ways

[Ross Walker <rswwalker@xxxxxxxxx>]

On Jan 28, 2010, at 7:25 PM, Christopher Chan <christopher.chan@xxxxxxxxxxxxxxx 
 > wrote:

>
>> There are concerns that everyone's currently fast performing LVM file
>> systems will suddenly become doggish once barrier support is included
>> and in some cases it will be true. Using a separate SSD device as a
>> journal can help in some cases.
>>
>
> That's only if you are using ext3/ext4 and data=journal. Are SSDs  
> faster
> than bbu nvram cards?

No, but for existing installations it is definitely better then the  
alternative.

-Ross

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