[Cialug] raid/nas

[John.Lengeling at radisys.com]

No problems with any power supplies.   We are using dual power 
supplies...doesn't make sense to purchase a reliable file server and not 
purchase dual PS or to not to put it on UPS power.

Have only had 1 drive failure over the past 8 years of using NetApp 
(across 4 filers and 2 different models).  Of course I don't have TBs of 
data.  We are using their small filers in the 250-300G range.  We 
purchased these filers to store the source code to our products (company 
jewels) so reliability and data integrity are very important to us.

Based on past experience with hardware based RAID cards (Dell PERC, AMI, 
etc, etc), I wouldn't trust the company jewels to them...I have seen too 
many blow up and needed to be recovered from backup.  NetApp measures 
their availability of these filers from the installed base at 99.99% (< 
53min/year) and >99,000 years for Mean Time to Data Loss (MTTDL).  See 
http://www.netapp.com/tech_library/3065.html

johnl




"Nathan C. Smith" <smith at ipmvs.com> 
Sent by: cialug-bounces at cialug.org
08/31/2005 09:30 AM
Please respond to
Central Iowa Linux Users Group <cialug at cialug.org>


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RE: [Cialug] raid/nas






have you had any trouble with power supplies on NetApp machines?  Or are 
all yours dual power?  how do the drives stand up?
 
-Nate
-----Original Message-----
From: John.Lengeling at radisys.com [mailto:John.Lengeling at radisys.com] 
Sent: Wednesday, August 31, 2005 9:26 AM
To: Central Iowa Linux Users Group
Subject: Re: [Cialug] raid/nas


For the size that you are looking at, I think you should be looking at SAN 
or NAS solutions instead of direct attached storage. 

I really like Network Appliance (www.netapp.com) they just run and run. 
Average uptimes on these devices are in the order of 400-500 days.  Well 
worth all the money for a NetApp. 
They support multiprotocols (CIFS, NFS,  HTTP, iSCSI, FiberChannel) 

johnl 



"n.d" <admin at c0wzftp.com> 
Sent by: cialug-bounces at cialug.org 
08/30/2005 09:48 PM 

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[Cialug] raid/nas








anyone know some good raid controllers that work excellent in linux? i'm 
thinking serial ata before ide or eide. no scsi plz

i've never used raid before.  i'm looking to make a fileserver with 
~100-150tb of storage. also like to have some expandibility in the future.

NAS anyone?
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