Author is exaggerating. We recover 6 TB RAID-5 on desktop-class hardware
in less then 6 hours. Our RAID is controlled by LSR (Linux Software
RAID). Performance is not good while rebuilding a single node, but
GlusterFS replicate/distribute translators help.
Arvids Godjuks wrote:
Consider this - a rebuild of 1.5-2 TB HDD in raid5/6 array can easily
take up to few days to complete. At that moment your storage at that
node will not perform well. I read a week ago very good article with
research of this area, only thing it's in russian, but it mentions a
few english sources too. Maybe google translate will help.
Here's the original link: http://habrahabr.ru/blogs/hardware/78311/
Here's the google translate version:
http://translate.google.com/translate?js=y&prev=_t&hl=en&ie=UTF-8&layout=1&eotf=1&u=http%3A%2F%2Fhabrahabr.ru%2Fblogs%2Fhardware%2F78311%2F&sl=ru&tl=en
(looks quite neet by the way)
2010/1/5 Liam Slusser <lslus...@gmail.com>:
Larry & All,
I would much rather rebuild a bad drive with a raid controller then
have to wait for Gluster to do it. With a large number of files doing
a ls -aglR can take weeks. Also you don't NEED enterprise drives with
a raid controller, i use desktop 1.5tb Seagate drives which happy as a
clam on a 3ware SAS card under a SAS expander.
liam
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