DCA Storage and omreport

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