ハードディスクの状況取得(Linux編)
dukehideサーバーを管理していく上で、ちょっと気になったLinuxのコマンドのメモ。
▽ハードディスクのS.M.A.R.T.状況を表示するコマンド。
# smartctl -i /dev/sda
=== START OF INFORMATION SECTION ===
Model Family: Intel 330/335 Series SSDs
Device Model: INTEL SSDSC2CT060A3
Serial Number: CVMP221501ML060AGN
LU WWN Device Id: 5 001517 bb2943ffc
Firmware Version: 300i
User Capacity: 60,022,480,896 bytes [60.0 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 T13/2015-D revision 3
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu May 5 18:03:50 2016 JST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF INFORMATION SECTION ===
Model Family: Intel 330/335 Series SSDs
Device Model: INTEL SSDSC2CT060A3
Serial Number: CVMP221501ML060AGN
LU WWN Device Id: 5 001517 bb2943ffc
Firmware Version: 300i
User Capacity: 60,022,480,896 bytes [60.0 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 T13/2015-D revision 3
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu May 5 18:03:50 2016 JST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
▽ストレージの温度やエラーなどのS.M.A.R.T.情報を表示するコマンド。
# smartctl -A /dev/sda
=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 0
9 Power_On_Hours_and_Msec 0x0032 000 000 000 Old_age Always - 907556h+53m+25.670s
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 525
181 Program_Fail_Cnt_Total 0x0032 000 000 000 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 000 000 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 507
225 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 56534
232 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0
233 Media_Wearout_Indicator 0x0032 100 100 000 Old_age Always - 0
241 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 56534
242 Host_Reads_32MiB 0x0032 100 100 000 Old_age Always - 35108
249 NAND_Writes_1GiB 0x0013 100 100 000 Pre-fail Always - 2340
=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 0
9 Power_On_Hours_and_Msec 0x0032 000 000 000 Old_age Always - 907556h+53m+25.670s
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 525
181 Program_Fail_Cnt_Total 0x0032 000 000 000 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 000 000 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 507
225 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 56534
232 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0
233 Media_Wearout_Indicator 0x0032 100 100 000 Old_age Always - 0
241 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 56534
242 Host_Reads_32MiB 0x0032 100 100 000 Old_age Always - 35108
249 NAND_Writes_1GiB 0x0013 100 100 000 Pre-fail Always - 2340
SSDの場合温度は取得できませんが、HDDなら可能です。上記コマンドで取得できた情報を元に、何かできないか試してみることにします。ファイトだよっ！
ついでにディスクの使用状況を取得するコマンド。
# df
※または見やすいように -h オプションを付加
# df -h
※または見やすいように -h オプションを付加
# df -h
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