Subject | SSD and "hotspots"? |
---|---|
Author | Kjell Rilbe |
Post date | 2010-12-30T22:14:56Z |
Hi,
Since FB database files have write hotspot (the header page?), which is
writte for every transaction, I would assume that SSD:s would wear out
pretty fast.
But is this true?
Or does the OS or disk hardware move that datablock around for each
write, to spread the wear across the entire "disk"?
Is it, perhaps, different for different disk brands?
In my case, the question is relevant for Win 2008 and Win 7.
I would assume that since forced writes cause quite a lot of disk seeks
for every commit, an SSD would provide a good performance boost.
Especially a disk like Intel X25, and especially if we put them in a
RAID 1+0 or RAID 5 config. Comments?
Regards,
Kjell
--
--------------------------------------
Kjell Rilbe
DataDIA AB
E-post: kjell@...
Telefon: 08-761 06 55
Mobil: 0733-44 24 64
Since FB database files have write hotspot (the header page?), which is
writte for every transaction, I would assume that SSD:s would wear out
pretty fast.
But is this true?
Or does the OS or disk hardware move that datablock around for each
write, to spread the wear across the entire "disk"?
Is it, perhaps, different for different disk brands?
In my case, the question is relevant for Win 2008 and Win 7.
I would assume that since forced writes cause quite a lot of disk seeks
for every commit, an SSD would provide a good performance boost.
Especially a disk like Intel X25, and especially if we put them in a
RAID 1+0 or RAID 5 config. Comments?
Regards,
Kjell
--
--------------------------------------
Kjell Rilbe
DataDIA AB
E-post: kjell@...
Telefon: 08-761 06 55
Mobil: 0733-44 24 64