[THIN] Re: What is the optimal RAID configuration

  • From: Adam_Baum@xxxxxxxxxxxxx
  • To: thin@xxxxxxxxxxxxx
  • Date: Fri, 12 Jul 2002 08:39:40 -0700

One thing no one has asked yet (at least I have not seen it), is how are
the two different RAIDs going to be configured?  The original question
stated RAID1 for system, RAID 5 for application.  Is this all happening on
the same system?  If so, unless this server has the ability to split the
drive cage into multiple channels, there will be a performance hit mixing
the two styles.  I tried this on a DL580 and DL380 and was very
disappointed with the results.

                    Joe Shonk                                                   
                    <JShonk@gtcsyst       To:     "'thin@xxxxxxxxxxxxx'" 
                    ems.com>              cc:                                   
                    Sent by:              Subject:     [THIN] Re: What is the 
optimal RAID configuration            
                    08:39 AM                                                    
                    Please respond                                              
                    to thin                                                     

RAID 1 is fault-tolerant... Multiple load balanced servers in a farm are
not.  Granted there is contigencies/redundancy built in a load balanced
farm, but it's not considered fault-tolerant. If the drive fails, the whole
server fails.  Dropping any connections it had with it, and possible loss
of valuable data.  With Raid 1, if you lose a drive your still ticking
aways as if nothing happened.

-----Original Message-----
From: Roger Riggins [mailto:Roger@xxxxxxxxxxxx]
Sent: Friday, July 12, 2002 8:13 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: What is the optimal RAID configuration

Another possibility is RAID 0 if you want performance, let multiple
servers be your redundancy.

ACES 319-352-1234

-----Original Message-----
From: Shannon Wyatt [mailto:swyatt@xxxxxxx]
Sent: Friday, July 12, 2002 7:49 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: What is the optimal RAID configuration

Generally Terminal Servers will have a mirrored disk configuration.
Since your applications are running from another server (hoepully) then
the additional RAID 5 configuration is unnecessary.

Most of the people that I work with are using 1U servers for Metaframe,
so supporting a RAID 5 array is impossible within the server itself.

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Sangha, Jay S
Sent: Friday, July 12, 2002 7:36 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] What is the optimal RAID configuration

Does anybody have any information in regards to optimal disk RAID
configuration for WTS/Citrix servers. We are putting together a new
build standard but we are unsure as to the best set-up. We are
considering RAID 1 for the system and RAID 5 for the application. Is
this sort of stuff documented anywhere.

Kind Regards,

Jay Sangha
NT/2000 Server Operations
SCS Global Services
Tel:  +44  (0)1438 76 2630
Fax:  +44 (0)1438 76 2208

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