HP provides a command line utility called HPE Smart Storage Administrator (HPE SSACLI) that is used to configure, manage, and monitor their RAID storage controllers. This application has changed its name over the years, but now it is called ssacli (hpacucli -> hpssacli -> ssacli).
Installation
vi /etc/yum.repos.d/hp.repo
For Centos 8
[mcp]
name=Management Component Pack
baseurl=http://downloads.linux.hpe.com/repo/mcp/CentOS/8/x86_64/current/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/GPG-KEY-mcpFor Centos 7
[HP-spp]
name=HP Service Pack for ProLiant
baseurl=http://downloads.linux.hpe.com/SDR/repo/spp/RHEL/7.2/x86_64/current/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/GPG-KEY-ssp
[HP-mcp]
name=HP Management Component Pack for ProLiant
baseurl=http://downloads.linux.hpe.com/SDR/repo/mcp/centos/7.3/x86_64/current/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/GPG-KEY-mcp$ yum -y update $ yum -y install ssacli
$ wget https://downloads.hpe.com/pub/softlib2/software1/pubsw-linux/p1857046646/v174193/ssacli-4.17-6.0.x86_64.rpm $ yum install ssacli-4.17-6.0.x86_64.rpm
Abbreviations used
- chassisname = ch
- controller = ctrl
- logicaldrive = ld
- physicaldrive = pd
- drivewritecache = dwc
Controller commands
What slot is our controller on with the command.
$ ssacli ctrl all show status
Detailed configuration.
$ ssacli ctrl all show config detail
Checking the status of the controller and battery.
$ ssacli ctrl all show config detail | grep -E "(Controller Status|Battery/Capacitor Status)"
Find new devices.
$ ssacli rescan
Rescan devices added since the last scan.
$ ssacli rescandetects newly added devices since the last rescan
Show information about an array (controller slot 0, array A).
$ ssacli ctrl slot=0 array a show
Show array status (controller slot 0, all arrays).
$ ssacli ctrl slot=0 array all show status
Recovery priority
Show recovery priority
$ ssacli ctrl slot=0 modify rp=?
Change the rebuild priority.
$ ssacli ctrl slot=0 modify rp=low $ ssacli ctrl slot=0 modify rp=medium $ ssacli ctrl slot=0 modify rp=mediumhigh $ ssacli ctrl slot=0 modify rp=high
Cache
Show the status of the write cache of the physical disk (controller slot 0).
$ ssacli ctrl slot=0 modify dwc=?
Enable / disable physical disk write cache.
$ ssacli ctrl slot=0 modify dwc=disable
Display the status of the smart array write cache when there is no battery (option for caching write without battery, controller slot 0).
$ ssacli ctrl slot=0 modify nbwc=?
Enable / disable the smart array write cache when no battery is present (option for caching write without battery, controller slot 0).
$ ssacli ctrl slot=0 modify nbwc=enable
Change the read / write ratio of the smart array cache (controller slot 3, cache ratio 80% read / 20% write).
$ ssacli ctrl slot=3 modify cacheratio=80/20
Disable cache when battery is faulty.
$ ssacli ctrl slot=3 modify nobatterywritecache=disable
Enable cache without battery.
$ ssacli ctrl slot=0 modify nbwc=enable
Disable cache for logical drive.
$ ssacli ctrl slot=0 logicaldrive 1 modify arrayaccelerator=disable
Enable cache for logical drive.
$ ssacli ctrl slot=0 logicaldrive 1 modify arrayaccelerator=enable
Enable / Disable SSD Smart Path (Controller Slot 0, Array A).
$ ssacli ctrl slot=0 array a modify ssdsmartpath=enable
Physical disk commands
Disc information.
$ ssacli ctrl slot=0 pd all show
View status.
$ ssacli ctrl slot=0 pd 1:2 show detail $ ssacli ctrl slot=0 pd all show status
Erase the disc.
$ ssacli ctrl slot=0 pd 1:2 show status $ ssacli ctrl slot=0 pd 1:2 modify erase
Turn on disk illumination.
$ ssacli ctrl slot=0 ld 1 modify led=on $ ssacli ctrl slot=0 pd 1:2 modify led=on $ ssacli ctrl slot=0 pd 1I:1:2 modify led=on
Logical drive commands
Information on logical volumes is detailed.
$ ssacli ctrl slot=0 ld all show detail
View Status.
$ ssacli ctrl slot=0 ld 1 show $ ssacli ctrl slot=0 ld all show status
Re-enabling a failed disk.
$ ssacli ctrl slot=0 ld 1 show status $ ssacli ctrl slot=0 ld 4 modify reenable forced
RAID setup
Find out what drives are installed on Slot 3.
$ ssacli ctrl slot=3 pd all show
Smart Array P700m in Slot 3
unassigned
physicaldrive 1I:1:1 (port 75:box 1:bay 29, SAS, 1000.2 GB, OK)
physicaldrive 1I:1:2 (port 75:box 1:bay 30, SAS, 1000.2 GB, OK)
physicaldrive 1I:1:3 (port 75:box 1:bay 31, SAS, 1000.2 GB, OK)
physicaldrive 1I:1:4 (port 75:box 1:bay 32, SAS, 1000.2 GB, OK)Create raid 10 from 6 disks.
$ ssacli ctrl slot=3 create type=ld drives=1I:1:1,1I:1:2,1I:1:3,1I:1:4 raid=1+0 stripesize=256
Check if the array was created by the command.
$ ssacli ctrl slot=3 ld all show Smart Array P700m in Slot 3 array A logicaldrive 1 (2.7 TB, RAID 1+0, OK)
Create a LogicalDrive with RAID 0 and a single drive.
$ ssacli ctrl slot=0 create type=ld drives=1:12 raid=0
Create LogicalDrive with RAID 1 and two drives.
$ ssacli ctrl slot=0 create type=ld drives=1:13,1:14 size=300 raid=1
Create LogicalDrive with RAID 5 and five drives.
$ ssacli ctrl slot=0 create type=ld drives=1:13,1:14,1:15,1:16,1:17 raid=5
Change stripe size
Checking the controller settings.
$ ssacli ctrl all show config detail
Change the stripe size.
$ ssacli ctrl slot=3 logicaldrive 1 modify stripesize=512
RAID Editing
Deleting array configuration.
$ ssacli ctrl slot=3 ld all delete
Remove logical drive.
$ ssacli ctrl slot=0 ld 4 delete
Expand a logical drive by adding one drive.
$ ssacli ctrl slot=0 ld 4 add drives=2:3
Expand disk size.
$ ssacli ctrl slot=0 ld 4 modify size=500 forced
Spare commands
Show fallback activation mode.
$ ssacli ctrl slot=0 modify spareactivationmode=?
Set fallback activation mode.
$ ssacli ctrl slot=0 modify spareactivationmode=predictive $ ssacli ctrl slot=0 modify spareactivationmode=failure
Adding disks to spare for a RAID array (hpacucli ctrl slot = 3 pd all show).
$ ssacli ctrl slot=3 array A add spares=allunassigned $ ssacli controller slot=1 logicaldrive all show status
Add two spare drives.
$ ssacli ctrl slot=0 array all add spares=1:5,1:7