To list details of your controller Dell PERC H200, use the command: sas2ircu LIST You will see the information about your controller: LSI Corporation SAS2 IR Configuration Utility. Version 5.00.00.00 (2010.02.09) Copyright (c) 2009 LSI Corporation. All rights reserved. Adapter Vendor Device SubSys SubSys Index Type ID ID Pci Address Ven ID Dev ID - - - - - - - 0 SAS2008 1000h 72h 00h:01h:00h:00h 1028h 1f1dh SAS2IRCU: Utility Completed Successfully.
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Check the status of the RAID. You can use the following script and a CRON job to automatize the check of your RAID status: #!/bin/bash # Version 2, December 2004 # written by Milan Berger ([email protected]) # # necessite le package bsd-mailx sous debian # et le package sas2ircu-status # voir recipient='[email protected]' if /usr/sbin/sas2ircu-status grep -q Okay then echo 'RAID status is okay' else echo -e 'RAID check failed' mailx -s 'RAID check on $HOSTNAME failed' $recipient fi Optimize your RAID controller PERC H200.
For maximum performance, activate the cache of your SATA disks. Following the creation of a virtual disk, the cache of your SATA disks is disabled. To profit again from a maximum of performance, it is required to re-enable the cache of the disks. This can be done in a rescue environment, running a 64 bit Ubuntu OS. Boot your server into rescue mode by choosing Ubuntu 14.04 LTS amd64.
Replacing a Dell PERC H200 to a Dell PERC H700 RAID card is surprisingly easy. These are the steps I followed when upgrading my Dell PowerEdge R510 Server. The H700 Card is much faster than the entry level H200 and it additionally supports RAID 5. So, it is a worthwhile upgrade if you intend to. The short answer is yes, that's the level of performance you should expect to see from the H200. The long answer: The H200 is the old SAS 6iR with SATA 6Gb/s support. It doesn't have the usual features you'd see on a RAID card (battery backup unit, onboard caching, RAID5/6 support).
Connect yourself in SSH using the provided credentials. Sudo su echo 'deb /' sudo tee -a /etc/apt/sources.list.d/linux.dell.com.sources.list apt-get update && apt-get install -y -force-yes srvadmin-base service dataeng start /opt/dell/srvadmin/sbin/omconfig storage vdisk action=changepolicy controller=0 vdisk=0 diskcachepolicy=enabled This will enable the cache of your disks again.