MegaCli64 Commands and its purpose
The
MegaCli64
command has a ridiculous amount of command line switches,
and the syntax is a bit bizarre as well.
The following commands I found useful when trying to physically
identify a failed disk and replace it.
General Parameters
·
Adapter
parameter -aN
The parameter -aN (where N is a
number starting with zero or the string ALL) specifies the adapter ID. If you
have only one controller it’s safe to use ALL instead of a specific ID, but
you’re encouraged to use the ID for everything that makes changes to your RAID
configuration.
·
Physical
drive parameter -PhysDrv [E:S]
For commands that operate on one
or more pysical drives, the -PhysDrv [E:S] parameter is used, where E is the
enclosure device ID in which the drive resides and S the slot number (starting
with zero). You can get the enclosure device ID using MegaCli -EncInfo
-aALL. The E:S syntax is also used for specifying the physical drives when
creating a new RAID virtual drive (see 5).
·
Virtual
drive parameter -Lx
The parameter -Lx is used for
specifying the virtual drive (where x is a number starting with zero or the string
all).
Failed drive(s):
/opt/MegaRAID/MegaCli/MegaCli64 -LDPDInfo -aAll
| grep -i 'inquiry\|firmware state'
NOTE: This will output two lines for each disk;
"status" followed by the disk serial, model, and firmware info.
Add disk in existing RAID Array:
/opt/MegaRAID/MegaCli/MegaCli64
-LDRecon -Start -r5 -Add -PhysDrv[252:5] -L0 -a0
Show Reconstructing progress:
/opt/MegaRAID/MegaCli/MegaCli64 -LDRecon ShowProg L0 -a0
Gather information
·
Controller information
MegaCli -AdpAllInfo -aALL
MegaCli -CfgDsply -aALL
Get Information from All Physical Disks
The -a command line
switch specifies the Array ID, in this case All Array IDs.
MegaCli64 -PdList -aAll
MegaCli -PDInfo -PhysDrv [E:S] -aALL
·
Enclosure information
MegaCli -EncInfo -aALL
Get Virtual Disk Information
The
-a
command line switch
specifies the Array ID, in this case All Array
IDs.
MegaCli64 -LDInfo -Lall -aAll
Get the Number of Virtual Drives Configured on Each Adapter
The
-a
command line switch
specifies the Array ID, in this case All Array
IDs.
MegaCli64 -LdGetNum -aAll
Get the Number of Array Controllers
MegaCli64 -adpCount
Blink Hard Drive Lights
Start Blinking
The
-a
command line switch
specifies the Array ID, in this case Array ID 0.
MegaCli64 -PdLocate -start
-physdrv[<ENCLOSURE>:<DRIVE>] -a0
Stop Blinking
The
-a
command line switch
specifies the Array ID, in this case Array ID 0.
MegaCli64 -PdLocate -stop
-physdrv[<ENCLOSURE><DRIVE>] -a0
Set Dedicated Hot Spare
The following physical drive was Unconfigured(good):
Enclosure Device ID: 4
Slot Number: 16
Device Id: 154
Sequence Number: 1
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
Raw Size: 140014MB [0x11177328 Sectors]
Non Coerced Size: 139502MB [0x11077328 Sectors]
Coerced Size: 139392MB [0x11040000 Sectors]
Firmware state: Unconfigured(good)
SAS Address(0): 0x500000e117951c52
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: FUJITSU MBE2147RC D905D304PB30AAGJ
When looking at all of the physical drives by running
MegaCli64
-PdList -aAll
, Array #: 0, 1, 2, 3, 4 were missing a hotspare.
The following command added the Unconfigured(good) physical drive above
as a dedicated hotspare:
The
-a
command line switch
specifies the Array ID, in this case Array ID 0.
MegaCli64 -PDHSP -Set -Dedicated -Array0,1,2,3,4 -PhysDrv
[4:16] -a0
Physical drive management
·
Set state to offline
MegaCli -PDOffline -PhysDrv [E:S] -aN
·
Set state to online
MegaCli -PDOnline -PhysDrv [E:S] -aN
·
Mark as missing
MegaCli -PDMarkMissing -PhysDrv
[E:S] -aN
·
Prepare for removal
MegaCli -PdPrpRmv -PhysDrv [E:S]
-aN
·
Replace missing drive
MegaCli -PdReplaceMissing -PhysDrv [E:S] -ArrayN -rowN -aN
The number N of the Array parameter is from the
"Span Reference:" line you get using MegaCli -CfgDsply -aALL, minus
the 0x0 part. For VSM systems it's normally 0. The number N of
the rowparameter is the Physical Disk in that span or array
starting with zero (it can be but is not always the physical disk’s slot!).
·
Rebuild drive - Drive
status should be "Firmware state: Rebuild"
MegaCli -PDRbld -Start -PhysDrv [E:S]
-aN
MegaCli -PDRbld -Stop -PhysDrv [E:S]
-aN
MegaCli -PDRbld -ShowProg -PhysDrv
[E:S] -aN
MegaCli -PDRbld -ProgDsply -physdrv [E:S] -aN
MegaCli -PDRbld -ProgDsply -physdrv [E:S] -aN
·
Clear drive
MegaCli -PDClear -Start -PhysDrv [E:S]
-aN
MegaCli -PDClear -Stop -PhysDrv [E:S]
-aN
MegaCli -PDClear -ShowProg -PhysDrv
[E:S] -aN
·
Bad to good
MegaCli -PDMakeGood -PhysDrv[E:S] -aN
Changes drive in state Unconfigured-Bad
to Unconfigured-Good.
Hot spare management
·
Set global hot spare
MegaCli -PDHSP -Set -PhysDrv [E:S] -aN
·
Remove hot spare
MegaCli -PDHSP -Rmv -PhysDrv [E:S] -aN
·
Set dedicated hot
spare
MegaCli -PDHSP -Set -Dedicated
-ArrayN,M,... -PhysDrv [E:S] -aN
Walkthrough: Rebuild a Drive that is marked 'Foreign' when
Inserted:
·
Bad to good
MegaCli -PDMakeGood -PhysDrv [E:S] -aALL
·
Clear the foreign
setting
MegaCli -CfgForeign -Clear -aALL
·
Set global hot spare
MegaCli -PDHSP -Set -PhysDrv [E:S] -aN
Walkthrough: Change/replace a drive
1. Set the drive offline, if it is not already offline due to an
error
MegaCli -PDOffline -PhysDrv [E:S] -aN
2. Mark the drive as missing
MegaCli -PDMarkMissing -PhysDrv [E:S]
-aN
3. Prepare drive for removal
MegaCli -PDPrpRmv -PhysDrv [E:S] -aN
4. Change/replace the drive
5. If you’re using hot spares then the replaced drive should
become your new hot spare drive
MegaCli -PDHSP -Set -PhysDrv [E:S] -aN
6. In case you’re not working with hot spares, you must re-add
the new drive to your RAID virtual drive and start the rebuilding
MegaCli -PdReplaceMissing -PhysDrv
[E:S] -ArrayN -rowN -aN
MegaCli -PDRbld -Start -PhysDrv [E:S]
-aN
Display all Adapters Configuration without log
This command shows
Atapter, Logical Drive, Physical Drive etc.. all in one.
#MegaCli64
-CfgDsply -aALL -nolog
Display Adapters properties
# MegaCli64 -AdpAllInfo -aALL
Get Number of Adapter
#MegaCli64 -adpCount
Controller Count: 1.
Controller Count: 1.
List all physical disks
The -a command line switch specifies the Adapter ID, in this case
Adapter 0.
Note:[-aALL] option
assumes that the parameters specified are valid for all the Adapters.
In the example below,
it only show physical disk number, size and disk type.
#
MegaCli64 -pdList -a0 | grep -i -E "slot|RAW Size|pd type"
Slot Number: 0
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 1
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 2
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 3
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 0
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 1
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 2
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Slot Number: 3
PD Type: SAS
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Create a Logical Drive
Query physical disk
info first
#MegaCli64
-PDList -aALL | egrep 'Adapter|Enclosure|Slot|Inquiry'
Adapter #0
Enclosure Device ID: 252
Slot Number: 0
Enclosure position: N/A
Inquiry Data: IBM-ESXSMBF2600RC SB2AEA00JHK4SB2ASB2ASB2A
Enclosure Device ID: 252
Slot Number: 1
Enclosure position: N/A
Inquiry Data: IBM-ESXSMBF2600RC SB2AEA00JHK1SB2ASB2ASB2A
Enclosure Device ID: 252
Slot Number: 2
Enclosure position: N/A
Inquiry Data: IBM-ESXSAL13SEB600 SB3534401NH4SB35SB35SB35
Enclosure Device ID: 252
Slot Number: 3
Enclosure position: N/A
Inquiry Data: IBM-ESXSAL13SEB600 SB35344031H4SB35SB35SB35
Adapter #0
Enclosure Device ID: 252
Slot Number: 0
Enclosure position: N/A
Inquiry Data: IBM-ESXSMBF2600RC SB2AEA00JHK4SB2ASB2ASB2A
Enclosure Device ID: 252
Slot Number: 1
Enclosure position: N/A
Inquiry Data: IBM-ESXSMBF2600RC SB2AEA00JHK1SB2ASB2ASB2A
Enclosure Device ID: 252
Slot Number: 2
Enclosure position: N/A
Inquiry Data: IBM-ESXSAL13SEB600 SB3534401NH4SB35SB35SB35
Enclosure Device ID: 252
Slot Number: 3
Enclosure position: N/A
Inquiry Data: IBM-ESXSAL13SEB600 SB35344031H4SB35SB35SB35
Create a Logical Drive
#MegaCli64
-CfgLdAdd -r1 '[252:2,252:3]' -a0
List Logical Drive info
The -L specifies the
LD ID, -a specifies Adapter ID, same as the example above.
#MegaCli64
-LDInfo -Lall -aALL
Adapter 0 -- Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 557.861 GB
Mirror Data : 557.861 GB
State : Optimal
Strip Size : 128 KB
Number Of Drives : 2
Span Depth : 1
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disabled
Encryption Type : None
Is VD Cached: No
Virtual Drive: 1 (Target Id: 1)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 557.861 GB
Mirror Data : 557.861 GB
State : Optimal
Strip Size : 128 KB
Number Of Drives : 2
Span Depth : 1
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disabled
Encryption Type : None
Is VD Cached: No
Adapter 0 -- Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 557.861 GB
Mirror Data : 557.861 GB
State : Optimal
Strip Size : 128 KB
Number Of Drives : 2
Span Depth : 1
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disabled
Encryption Type : None
Is VD Cached: No
Virtual Drive: 1 (Target Id: 1)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 557.861 GB
Mirror Data : 557.861 GB
State : Optimal
Strip Size : 128 KB
Number Of Drives : 2
Span Depth : 1
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disabled
Encryption Type : None
Is VD Cached: No
In the case above, 2
LD were listed, with detail info such as raid level, size, strip size, cache
policy etc..
Just want to get number of LD configured, here
is it
#MegaCli64 -LdGetNum -aAll
Number of Virtual Drives Configured on Adapter 0: 2
Number of Virtual Drives Configured on Adapter 0: 2
View information about the battery backup-up
unit state
#MegaCli64
-AdpBbuCmd -aAll
BBU status for Adapter: 0
BatteryType: iBBU08
Voltage: 4080 mV
Current: 0 mA
Temperature: 31 C
Battery State : Operational
BBU Firmware Status:
Charging Status : None
Voltage : OK
Temperature : OK
Learn Cycle Requested : No
Learn Cycle Active : No
Learn Cycle Status : OK
Learn Cycle Timeout : No
I2c Errors Detected : No
Battery Pack Missing : No
Battery Replacement required : No
Remaining Capacity Low : No
Periodic Learn Required : No
Transparent Learn : No
No space to cache offload : No
Pack is about to fail & should be replaced : No
Cache Offload premium feature required : No
Module microcode update required : No
BBU GasGauge Status: 0x0280
Relative State of Charge: 100 %
Charger System State: 1
Charger System Ctrl: 0
Charging current: 0 mA
Absolute state of charge: 88 %
Max Error: 0 %
Battery backup charge time : 48 hours +
BBU Capacity Info for Adapter: 0
Relative State of Charge: 100 %
Absolute State of charge: 88 %
Remaining Capacity: 1333 mAh
Full Charge Capacity: 1336 mAh
Run time to empty: Battery is not being discharged.
Average time to empty: 2 Hour, 40 Min.
Estimated Time to full recharge: Battery is not being charged.
Cycle Count: 6
BBU Design Info for Adapter: 0
Date of Manufacture: 02/29, 2012
Design Capacity: 1500 mAh
Design Voltage: 4100 mV
Specification Info: 0
Serial Number: 698
Pack Stat Configuration: 0x0000
Manufacture Name: LS36691
Device Name: bq27541
Device Chemistry: LION
Battery FRU: N/A
Transparent Learn = 0
App Data = 0
BBU Properties for Adapter: 0
Auto Learn Period: 30 Days
Next Learn time: Sat Aug 23 01:57:06 2014
Learn Delay Interval:0 Hours
Auto-Learn Mode: Enabled
BBU Mode = 4
BBU status for Adapter: 0
BatteryType: iBBU08
Voltage: 4080 mV
Current: 0 mA
Temperature: 31 C
Battery State : Operational
BBU Firmware Status:
Charging Status : None
Voltage : OK
Temperature : OK
Learn Cycle Requested : No
Learn Cycle Active : No
Learn Cycle Status : OK
Learn Cycle Timeout : No
I2c Errors Detected : No
Battery Pack Missing : No
Battery Replacement required : No
Remaining Capacity Low : No
Periodic Learn Required : No
Transparent Learn : No
No space to cache offload : No
Pack is about to fail & should be replaced : No
Cache Offload premium feature required : No
Module microcode update required : No
BBU GasGauge Status: 0x0280
Relative State of Charge: 100 %
Charger System State: 1
Charger System Ctrl: 0
Charging current: 0 mA
Absolute state of charge: 88 %
Max Error: 0 %
Battery backup charge time : 48 hours +
BBU Capacity Info for Adapter: 0
Relative State of Charge: 100 %
Absolute State of charge: 88 %
Remaining Capacity: 1333 mAh
Full Charge Capacity: 1336 mAh
Run time to empty: Battery is not being discharged.
Average time to empty: 2 Hour, 40 Min.
Estimated Time to full recharge: Battery is not being charged.
Cycle Count: 6
BBU Design Info for Adapter: 0
Date of Manufacture: 02/29, 2012
Design Capacity: 1500 mAh
Design Voltage: 4100 mV
Specification Info: 0
Serial Number: 698
Pack Stat Configuration: 0x0000
Manufacture Name: LS36691
Device Name: bq27541
Device Chemistry: LION
Battery FRU: N/A
Transparent Learn = 0
App Data = 0
BBU Properties for Adapter: 0
Auto Learn Period: 30 Days
Next Learn time: Sat Aug 23 01:57:06 2014
Learn Delay Interval:0 Hours
Auto-Learn Mode: Enabled
BBU Mode = 4
Configure write-cache to be disabled when
battery is broken
# MegaCli64 -LDSetProp NoCachedBadBBU -LALL -aALL
Change physical disk cache policy
To disable it at no
UPS situation
# MegaCli -LDGetProp -DskCache -LAll -aALL
To enable it:
# MegaCli -LDGetProp -DskCache -LAll -aALL
Blink Hard Drive Lights
Sometime, if a disk
not complete dead, you may not see a amber light
Start Blinking
MegaCli64 -PdLocate -start
-physdrv[<ENCLOSURE>:<DRIVE>] -a0
Stop Blinking
MegaCli64 -PdLocate -stop -physdrv[<ENCLOSURE><DRIVE>]
-a0
View reconstruction progress
When reconstructing a
RAID array, you can check its progress with this command, in this case, Logical
Drive 0, Adapter 0
# MegaCli64 -LDRecon ShowProg L0 -a0
Patrol read is a
feature which tries to discover disk error before it is too late and data is
lost. By default it is done automatically (with a delay of 168 hours between
different patrol reads) and will take up to 30% of IO resources.
You can find more
detail in megaraid patrol read and consistent check and MeagRAID Patrol Read Detail
To see information about the patrol read state
and the delay between patrol read runs:
# MegaCli64 -AdpPR -Info -aALL
To find out the current patrol read rate,
execute
# MegaCli64 -AdpGetProp PatrolReadRate -aALL
To reduce patrol read resource usage to 2% in
order to minimize the performance impact:
# MegaCli64 -AdpSetProp PatrolReadRate 2 -aALL
To disable automatic patrol read:
# MegaCli64 -AdpPR -Dsbl -aALL
To enable automatic patrol read:
#MegaCli64 -AdpPR -EnblAuto -aALL
To start a manual patrol read scan:
# MegaCli64 -AdpPR -Start -aALL
To stop a patrol read scan:
# MegaCli64 -AdpPR -Stop -aALL
Note: Use the above commands to run patrol read in off-peak times.
Note: Use the above commands to run patrol read in off-peak times.
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