RAID config ...

I'm considering new hardware and am pondering using RAID 0+1 for an array containing only the content store. I could therefore have the OS and Teamsite on an array of RAID 1. This would allow me to have the store on it's own array while having only to buy 6 disks instead of 8, which would be required if both arrays were RAID 0+1.

Any thoughts on this are much appreciated!

Brian

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Bill Klish

we have our backing stores on a network appliance san solution using raid 5. The local solaris os disks are raid 1 (I think), possibly 0+1. I would recommend the san route over local disk since uptime and performance is generally faster. The san solution took our backup time of a 30 gb store from 2 hours using local disk (with tar/gzip) to 30 seconds using the san snapshot technology.

Migrateduser

Not sure SAN is an option for me, but interesting. Thanks for the advice...

Brian

Gregg Faus

I'm in the same siituation. I'm about to request a hardware purchase for a two CPU server and need to figure out which RAID config I should use. Our current server is RAID 5 (though I asked for 0+1 and assumed it was until I looked at the array manager) and the write performance it just fine. With the disk subsystems being so fast these days I wonder if this suggestion is truly valid anymore. I would be great to see some metrics on this.

ProfessorX

We have our store on a sperate disk/partion of RAID 1.

Like others I though it was on RAID 5.

I know the TeamSite 6.5 install doc says RAID 0+1 or 5 but does anyone see a red flag here?

CRB

Hi,
this is on windows 2003 sp1, ts 6.5 sp3.
we are having issues with a Server not responding fast enough (sometimes not responding at all) and complains about system resources issue. the server has cpu of 2 X dual-core 2.6 GHz processor and 16GB RAM. everytime we check the task manager the server looks fine the CPU and memory usage is very low but it is still slow... the event log is showing an event ID 2099 (look it up on microsoft OS event library for more details).
the event is the host agent with error: unable to acquire file system information for %1 and cause: this error can be caused by a low memory condition.
well we have 16GB of RAM and it only uses 2GB of it at most, so i dont see it being a true memory issue. looking at the server deeper: the disk queuring length was excessive at a "325" average per sample interval. and it looked like it was write queuring that was high as apposed to read.

we used RAID 5 to configure our server before installing teamsite, and i am wondering if that has something to do with the problem we are experiencing? i know that the documents recommend RAID 0+1 but i too assumed that the systems these days are very fast and we are very light users of teamsite. and i didnt expect to have that high of number of writes so we used RAID 5.

there is a critical update for RAID controller, i wonder if that might fix the issue...

any thoughts or experiences with this issue?
do you think i should go back and put iw-store on a partition that is configured with RAID 0+1?