はじめに
東京DCのような新しいDCでRAIDを構成する際には、現在LSI MegaRAIDが選択されます。
http://qiita.com/testnin2/items/5a58de9e070dd146320d
他のDCでは、AdaptecのRAID CARDが選択されることがあります。ここでは、Adaptecでの構成を確認したいと思います。以下のKnowledgeLayerの記事も併せてご確認下さい。
http://knowledgelayer.softlayer.com/procedure/how-do-i-check-health-my-adaptec-raid-array-linux
1. IPMIを使ったAdaptec RAID Configuration Utilityによる確認例
この画面でCtrl + Aを押す
まずはDISK数の確認
3つDISKが存在することが分かる。
Escapeで前に戻って、RAID構成を確認する。
Dev00とDev01のRAID1構成であることが分かる。
2. コマンドによる確認例
1. OSコマンドでRAID Controller情報の確認する
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 1 1.8T 0 disk
├─sda1 8:1 1 256M 0 part /boot
├─sda2 8:2 1 1G 0 part [SWAP]
└─sda3 8:3 1 1.8T 0 part /
# parted -l
Model: Adaptec RAID1-A (scsi)
Disk /dev/sda: 1997GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 269MB 268MB primary ext2 boot
2 269MB 1343MB 1074MB primary linux-swap(v1)
3 1343MB 1997GB 1996GB primary ext4
# dmesg |grep -i Adaptec
Adaptec aacraid driver 1.2-0[30300]-ms
scsi 6:0:0:0: Direct-Access Adaptec RAID1-A V1.0 PQ: 0 ANSI: 2
# lspci |grep -i RAID
02:00.0 RAID bus controller: Adaptec AAC-RAID (rev 09)
# lspci -v -s 02:00.0
02:00.0 RAID bus controller: Adaptec AAC-RAID (rev 09)
Subsystem: Adaptec 5405G
Flags: bus master, fast devsel, latency 0, IRQ 27
Memory at d7200000 (64-bit, non-prefetchable) [size=2M]
Expansion ROM at d7400000 [disabled] [size=512K]
Capabilities: [98] Power Management version 2
Capabilities: [a0] MSI: Enable- Count=1/2 Maskable- 64bit+
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [90] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Kernel driver in use: aacraid
Kernel modules: aacraid
2. arcconfコマンドでRAID環境概要を確認する
# /usr/Adaptec_Event_Monitor/arcconf getversion
Controllers found: 1
Controller #1
==============
Firmware : 5.2-0 (18950)
Staged Firmware : 5.2-0 (18950)
BIOS : 5.2-0 (18950)
Driver : 1.2-0 (30300)
Boot Flash : 5.2-0 (18950)
Command completed successfully.
SoftLayerの時計マークが消えてOSログインした際には、まだ以下のようにRAIDはBuild中でした...
# /usr/Adaptec_Event_Monitor/arcconf getstatus 1
Controllers found: 1
Logical device Task:
Logical device : 0
Task ID : 100
Current operation : Build/Verify
Status : In Progress
Priority : High
Percentage complete : 59
Command completed successfully.
こちらは更に待った後の状態。無事にBuildは終了している。
# /usr/Adaptec_Event_Monitor/arcconf getstatus 1
Controllers found: 1
Current operation : None
Command completed successfully.
以下より、Device#0とDevice#1からRAID1が構成されていることが分かる。
# /usr/Adaptec_Event_Monitor/arcconf getconfig 1
Controllers found: 1
----------------------------------------------------------------------
Controller information
----------------------------------------------------------------------
Controller Status : Optimal
Channel description : SAS/SATA
Controller Model : Adaptec 5405Z
Controller Serial Number : 1B3011B3440
Controller World Wide Name : 50000D1104243980
Controller Alarm : Enabled
Physical Slot : 2
Temperature : 61 C/ 141 F (Normal)
Installed memory : 512 MB
Copyback : Disabled
Background consistency check : Disabled
Background consistency check period : 30
Automatic Failover : Enabled
Global task priority : High
Performance Mode : Default/Dynamic
Host bus type : PCIe
Host bus speed : 2500 MHz
Host bus link width : 4 bit(s)/link(s)
Stayawake period : Disabled
Spinup limit internal drives : 0
Spinup limit external drives : 0
Defunct disk drive count : 0
Logical devices/Failed/Degraded : 1/0/0
SSDs assigned to MaxCache pool : 0
Maximum SSDs allowed in MaxCache pool : 8
MaxCache Read Cache Pool Size : 0.000 GB
MaxCache flush and fetch rate : 0
MaxCache Read, Write Balance Factor : 3,1
NCQ status : Enabled
Statistics data collection mode : Enabled
--------------------------------------------------------
Controller Version Information
--------------------------------------------------------
BIOS : 5.2-0 (18950)
Firmware : 5.2-0 (18950)
Driver : 1.2-0 (30300)
Boot Flash : 5.2-0 (18950)
--------------------------------------------------------
Controller ZMM Information
--------------------------------------------------------
Status : ZMM Optimal
----------------------------------------------------------------------
Logical device information
----------------------------------------------------------------------
Logical device number 0
Logical device name : RAID1-A
Block Size of member drives : 512 Bytes
RAID level : 1
Unique Identifier : 363F5BA9
Status of logical device : Impacted
Size : 1904630 MB
Parity space : 1904640 MB
Read-cache setting : Enabled
Read-cache status : On
Write-cache setting : On when protected by battery/ZMM
Write-cache status : On
MaxCache read cache setting : Enabled
MaxCache read cache status : Off
Partitioned : Yes
Protected by Hot-Spare : No
Bootable : Yes
Failed stripes : No
Power settings : Disabled
--------------------------------------------------------
Logical device segment information
--------------------------------------------------------
Segment 0 : Present (Controller:1,Connector:0,Device:0) WD-WMC1P0461099
Segment 1 : Present (Controller:1,Connector:0,Device:1) WD-WMC1P0338863
----------------------------------------------------------------------
Physical Device information
----------------------------------------------------------------------
Device #0
Device is a Hard drive
State : Online
Block Size : 512 Bytes
Supported : Yes
Transfer Speed : SATA 3.0 Gb/s
Reported Channel,Device(T:L) : 0,0(0:0)
Reported Location : Connector 0, Device 0
Vendor : WDC
Model : WD2000FYYZ-0
Firmware : 01.01K02
Serial number : WD-WMC1P0461099
World-wide name : 50000D1104243992
Reserved Size : 3163160 KB
Used Size : 1904640 MB
Unused Size : 64 KB
Total Size : 1907729 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off,Reduced rpm
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
NCQ status : Enabled
Device #1
Device is a Hard drive
State : Online
Block Size : 512 Bytes
Supported : Yes
Transfer Speed : SATA 3.0 Gb/s
Reported Channel,Device(T:L) : 0,1(1:0)
Reported Location : Connector 0, Device 1
Vendor : WDC
Model : WD2000FYYZ-0
Firmware : 01.01K02
Serial number : WD-WMC1P0338863
World-wide name : 50000D1104243990
Reserved Size : 3163160 KB
Used Size : 1904640 MB
Unused Size : 64 KB
Total Size : 1907729 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off,Reduced rpm
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
NCQ status : Enabled
Device #2
Device is a Hard drive
State : Ready
Block Size : 512 Bytes
Supported : Yes
Transfer Speed : SATA 3.0 Gb/s
Reported Channel,Device(T:L) : 0,2(2:0)
Reported Location : Connector 0, Device 2
Vendor : WDC
Model : WD2000FYYZ-0
Firmware : 01.01K02
Serial number : WD-WCC1P0881078
World-wide name : 50000D1104243991
Reserved Size : 3163160 KB
Used Size : 0 MB
Unused Size : 1904640 MB
Total Size : 1907729 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off,Reduced rpm
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
NCQ status : Enabled
Command completed successfully.