Zimbra offers Open Source email server software and shared calendar for Linux and the Mac
Go Back   Zimbra :: Forums > Zimbra Collaboration Suite > Installation

Welcome to the Zimbra :: Forums!
Welcome, if you would like to post a comment please register. We also encourage you to explore all things Zimbra with our team and members of the community.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #11 (permalink)  
Old 05-04-2009, 02:32 PM
Moderator
 
Posts: 1,209
Default

Quote:
Originally Posted by ewilen View Post
Mark (or anyone else listening in),

How about a single RAID 10+hot spare array composed of 5 250 GB SATA drives @ 7200 RPM?

(In answer to your comment above, I anticipate about 75 ZCO users and about 15 IMAP users, though nothing will prevent people from using ZWC. Also I would guess around a couple dozen ActiveSync users on a combination of Fetch and Push.)

I'll definitely keep you updated!
SATA does really well for sustained throughput, like in media servers, but most enterprise-grade SCSI/SAS drives do much, much better than SATA on random I/O. And Zimbra does a lot of fairly random I/O.

So, we have stayed away from SATA for the most part, though SATA is fine for /opt/zimbra/backup and for HSM volumes.

RAID10 in principle is fine. Regardless of SAS or SATA, I would spring for the best hardware RAID controller you can find, with a lot of onboard cache and battery-backed as well.

With the config you describe, you might do just fine with SATA--most of the time. But when the server starts getting hammered...

Also, we look at servers having a lifetime of five years. So, when you amortize the higher cost of a SAS vs. SATA disk subsystem over five years, the extra cost per year, or even per month, is very small. SAS/SCSI over SATA just seems like cheap insurance, so that's what we do.

Hope that helps,
Mark
__________________
___________________________________
L. Mark Stone, CIO


"Uptime. All the time."

477 Congress Street | Portland, ME 04101-3431 | (207) 772-5678

proactive maintenance and monitoring | technology consulting
Zimbra groupware | EMR implementations | private cloud hosting
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads

Why Join?

Registering let's you ask questions, makes it easier to search, displays any files attached to posts, and notifies you about replies.

blog.zimbra.com




 

SEO by vBSEO ©2011, Crawlability, Inc.