En servidores Linux, a veces necesitamos monitorizar nuestro RAID de discos que estan bajo controladoras LSI, ya sea el caso de Supermicro con sus LSI Mezzanine (9260) bajo plataformas 2U TWIN 2, Dell con sus versiones PERC de LSI o las Asus Pike. Para ello, mostrare una chuleta de la utilidad propietaria y «no-muy-amigable» de LSI, Megacli.

Mostrar informacion de adaptadores y status:

[root@localhost ~]# /opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aAll

Adapter #0

=================================================================== Versions
================
Product Name : MegaRAID SAS 8704EM2
Serial No : P488060910
FW Package Build: 9.0.1-0034

Image Versions in Flash:
================
FW Version : 1.20.32-0512
BIOS Version : 2.01.00
WebBIOS Version : 1.1-49-e_15-Rel
Ctrl-R Version : 1.02-012B
Preboot CLI Version: 01.00-021:#%00004
Boot Block Version : 1.00.00.01-0011
————————————————-

Mostrar el virtual drive/logical drive 0 en el adaptador 0:

[root@localhost ~]# /opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -L0 -a0

Adapter 0 — Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 110.827 GB
State : Optimal
Strip Size : 64 KB
Number Of Drives : 2
Span Depth : 1
Default Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU
Access Policy : Read/Write
Disk Cache Policy : Disk’s Default
Encryption Type : None

Mostrar como esta la funcion de autorebuild para los volumenes RAID que tengamos:

[root@localhost ~]# /opt/MegaRAID/MegaCli/MegaCli64 -AdpAutoRbld -Dsply -a0

Adapter 0: AutoRebuild is Enabled.

Habilitar autorebuild para los volumenes RAID que tengamos:

[root@localhost ~]# /opt/MegaRAID/MegaCli/MegaCli64 -Enbl -a0

Adapter 0: AutoRebuild is Enabled.

Deshabilitar autorebuild para los volumenes RAID que tengamos:

[root@localhost ~]# /opt/MegaRAID/MegaCli/MegaCli64 -AdpAutoRbld -Dsbl -a0

Adapter 0: AutoRebuild is Disabled.

Mostrar los dispositivos fisicos (discos) que tenemos conectados a la primera controladora que tengamos:

[root@localhost ~]# /opt/MegaRAID/MegaCli/MegaCli64 -PDList -a0

Adapter #0

Enclosure Device ID: 252
Slot Number: 0
Enclosure position: 0
Device Id: 4
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA
Raw Size: 111.790 GB [0xdf94bb0 Sectors]
Non Coerced Size: 111.290 GB [0xde94bb0 Sectors]
Coerced Size: 110.827 GB [0xdda7800 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x3d5648536a8b424c
Connected Port Number: 0(path0)
Inquiry Data: GS01103909280024 FM-25S2S-120GBP2 2.1
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 3.0Gb/s
Link Speed: 3.0Gb/s
Media Type: Hard Disk Device
Drive Temperature :0C (32.00 F)

Enclosure Device ID: 252
Slot Number: 1
Enclosure position: 0
Device Id: 5
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA
Raw Size: 111.790 GB [0xdf94bb0 Sectors]
Non Coerced Size: 111.290 GB [0xde94bb0 Sectors]
Coerced Size: 110.827 GB [0xdda7800 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x3d5647506b82414a
Connected Port Number: 1(path0)
Inquiry Data: GS03104110140009 FM-25S2S-120GBP2 2.1
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 3.0Gb/s
Link Speed: 3.0Gb/s
Media Type: Hard Disk Device
Drive Temperature :0C (32.00 F)

Enclosure Device ID: 252
Slot Number: 2
Enclosure position: 0
Device Id: 6
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA
Raw Size: 1.819 TB [0xe8e088b0 Sectors]
Non Coerced Size: 1.818 TB [0xe8d088b0 Sectors]
Coerced Size: 1.817 TB [0xe8b6d000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x81709e2e88d6feb1
Connected Port Number: 2(path0)
Inquiry Data: JK1171YBJ07VSFHitachi HDS722020ALA330 JKAOA28A
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 3.0Gb/s
Link Speed: 3.0Gb/s
Media Type: Hard Disk Device
Drive Temperature :0C (32.00 F)

Enclosure Device ID: 252
Slot Number: 3
Enclosure position: 0
Device Id: 7
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA
Raw Size: 1.819 TB [0xe8e088b0 Sectors]
Non Coerced Size: 1.818 TB [0xe8d088b0 Sectors]
Coerced Size: 1.817 TB [0xe8b6d000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x81709e2e88d5f7b1
Connected Port Number: 3(path0)
Inquiry Data: JK1171YBJ07ULFHitachi HDS722020ALA330 JKAOA28A
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 3.0Gb/s
Link Speed: 3.0Gb/s
Media Type: Hard Disk Device
Drive Temperature :0C (32.00 F)

En el proximo post mas informacion de como crear un RAID o hacer un autorebuild desde la utilidad Megacli sin tener que reiniciar para entrar en la Web GUI de LSI.