Bacula-users

Re: [Bacula-users] Bacula spool on SSD -- solid state drive?performance testing?

2009-07-27 12:36:13
Subject: Re: [Bacula-users] Bacula spool on SSD -- solid state drive?performance testing?
From: Josh Fisher <jfisher AT pvct DOT com>
To: Alan Brown <ajb2 AT mssl.ucl.ac DOT uk>
Date: Mon, 27 Jul 2009 12:15:31 -0400
Alan Brown wrote:
> On Fri, 24 Jul 2009, John Lockard wrote:
>
>   
>> For spool, I would worry about the limited write (erase)
>> cycles of SSD.
>>     
>
> SLC drives are good for at least 100,000 cycles and all current SSD drives
> use wear levelling plus even more generous levels of sparing than
> mechanical HDDs. Even for constant spooling/unspooling (which is likely
> less wear than some other operations) that translates to a disk lifetime
> well in excess of the rest of the server components.
>
> WRT the ramdisk comment: Yes, but...... how much is 100+Gb of ram?
>   

Here's an article on why write endurance is no longer a problem for 
flash SSDs.
http://www.storagesearch.com/ssdmyths-endurance.html

> AB
>
>
>
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