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1. The DCA uses direct attached storage to house application and operating environment data.
2. Each server in a DCA contains a Dell PERC with 512MB of cache protected by a lithium-ion battery.
Master Servers
Dell R610 , 6 drives, Raid 5 (4+1) with Hot Spare, 3 Virtual Disks
Following are the 8
default mount points.
/
/boot
/data
/dev/sda1
/dev/sda2
/dev/sdb
/dev/sdc
/swap
Segment Servers
Dell R510 (Standard and Capacity), 12 drives, 2 x Raid 5(5+1), 4 Virtual Disks
Following are the 10 default mount points.
/
/boot
/data1
/data2
/dev/sda1
/dev/sda2
/dev/sdb
/dev/sdc
/dev/sdd
/swap
Common storage commands
The following commands can be used to view information about the storage system on a DCA server. All commands should be run as the user root.
View PERC cache policy:
# omreport storage vdisk | grep -e ID -e 'Write Policy'
View PERC battery learn cycle state:
# omreport storage battery | grep 'State'
View PERC battery charge capacity:
# omconfig storage controller action=exportlog controller=0
# cat /var/log/lsi_mmdd.log | grep 'Full Charge Capacity'
View PERC battery manufacturer:
# omconfig storage controller action=exportlog controller=0
# cat /var/log/lsi_mmdd.log | grep 'Manufacturer Name'
View disk free space by OS mount:
# df -h