Диски для домашнего NAS. Парковка головок

[2gusia]

Это - продолжение, начало тут Выбор дисков для домашнего NAS. Железная часть.
Окончание тут ZFS и диск с 4K сектором aka Advanced Format

Итак диски куплены, что, почему и как с ними делать.

Подавление постоянной парковки головок.

Comments

[2gusia]

> WD10EZRX
придерживаюсь того же мнения. Но в ближайшее время если и буду покупать диски, то в случае необходимости замены старых. Нет большого смысла 2T на 3Т менять.

> не смотрел в их сторону
IMHO - вполне. Ср диск с 9000 часов накрутки, всё по FreeBSD

Model Family: Western Digital Caviar Green (AF)
Device Model: WDC WD20EARS-00MVWB0
Serial Number: WD-WCAZAA099483
LU WWN Device Id: 5 0014ee 25ba542b5
Firmware Version: 51.0AB51
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Sun Feb 10 15:55:58 2013 MSK
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (36480) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 352) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x3035) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 6
3 Spin_Up_Time 0x0027 165 165 021 Pre-fail Always - 6733
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 96
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
9 Power_On_Hours 0x0032 088 088 000 Old_age Always - 9008
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 80
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 54
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 65
194 Temperature_Celsius 0x0022 114 106 000 Old_age Always - 36
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0