> Hi there,<br />> some thoughts on that:<br />> <br />> On
09.01.2013 17:09, aragonx@dcsnow.com wrote:<br />> <br />>> Data
loss<br />> this is a matter of backup strategy, you mean availability
here?<br /><br />This is a long term archive and this data will only
reside here.<br /><br />> afaik the biggest SAS disks are 900GB, you
mean NL-SAS? Even with the<br />> 4TB disks (which I would not
recommend since they are ridiculously<br />> overpriced compared to
3GB) in RAID + Hotspare we're talking ~300 Disks<br />> here. How do
you plan to house, connect, power and monitor them?<br /><br />I
calculated we would need 3 racks for the arrays, servers and
switches. We have the space in our datacenter so that won't be an
issue.<br /><br />> so you want a redundant storage system? Over what
link would you plan<br />> to sync the two storages?<br /><br />The
application would probably write to both clusters at the same time.
The application has two sites also and I would locate this storage close
to it.<br /><br />> This sound all very ambitious to me. Maybe you
should consider buying<br />> an entry-level or even mid-range storage
system like IBM DS3512 or<br />> similar...<br /><br />We have been
looking at a Dell PowerValut group of arrays or the Compellent (BSD
isn't so bad). I'll take a closer look at the IBM too. But
since this data will exist no where else, I would like some additional
redundancy above the security the array and DR site provide.<br /><br />So
far, complete solutions to handle all of this go well above my budget.<br
/><br />Thank you!<br />--
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