Dňa 04.11.2013 08:44, Dan Lukes wrote / napísal(a):
>
> Kdyz uz jsme tu nakously ty nerotacni disky, kouknul jsem na
> statistiky sveho jedineho SSD disku (i tohle je technologie, kterou
> teprve opatrne testuju) a trochu me prekvapily:
>
>> 9 Power_On_Hours -O--CK 100 100 000 - 2009
> ...
>> 1 0x018 6 509050865 Logical Sectors Written
>> 1 0x020 6 10204562 Number of Write Commands
>> 1 0x028 6 718631523 Logical Sectors Read
>> 1 0x030 6 139132 Number of Read Commands
>
> Nejde o samotny objem ctenych/zapsanych dat po 2009 provoznich
> hodinach. Jde spis o pomer ctenych a zapsanych dat. Tam jsem cekal
> vyraznou prevahu ve cteni a ne takrka rovnovahu ...
>
> Muzete se kouknout, teda, kdo mate SSD disk, ktery si takovou
> statistiku interne vede, jak to mate u vas ?
>
> Ne, ze by o neco realne slo, jen me proste zajima, jestli je tohle
> "normalni" pomer mezi ctenima a zapisama nebo je to atypickej stroj.
>
> Jasne, urcite to zavisi na tom, k cemu se takovyu stroj pouziva. Tak
> tohle je SMTP server pro cca dva uzivatele. Sice na tom bezi i WWW
> server, ale nikdo ho nenavstevuje, takze ten to ovlivnuje minimalne ...
>
> Dan
>
>
> P.S. Jestli nekdo mate SSD disk, statistiky by vas zajimaly, ale doted
> jste nevedeli, ze by na nich neco takovyho mohlo byt pristupny, tak
> package, ktery hledate, se jmenuje sysutils/smartmontools. Jen pozor,
> to, ze mate SSD disk automaticky neznamena, ze on si statistiky vede
> a/nebo je zverejnuje, takze mozna se nedozvite nic zajimavyho.
Mám jeden SSD disk, používam ho ako L2ARC, beží podobne dlho, ale takéto
štatistiky som nenašiel. Toto mi dáva smartctl:
smartctl -a /dev/ada0
smartctl 6.0 2012-10-10 r3643 [FreeBSD 9.1-RELEASE-p7 amd64] (local build)
Copyright (C) 2002-12, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: KINGSTON SKC300S37A60G
Serial Number: 50026B73340261B8
LU WWN Device Id: 5 0026b7 3340261b8
Firmware Version: 507ABBF0
User Capacity: 60 022 480 896 bytes [60,0 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ATA8-ACS, 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: Mon Nov 4 09:01:03 2013 CET
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: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection:
Disabled.
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: ( 0) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 48) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x0021) SCT Status supported.
SCT Data Table supported.
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
1 Raw_Read_Error_Rate 0x000f 118 118 050 Pre-fail
Always - 193278240
5 Reallocated_Sector_Ct 0x0033 100 100 003 Pre-fail
Always - 0
* 9 Power_On_Hours 0x0032 098 098 000 Old_age
Always - 2022 (56 84 0)**
* 12 Power_Cycle_Count 0x0032 100 100 000 Old_age
Always - 45
13 Read_Soft_Error_Rate 0x000a 046 046 000 Old_age
Always - 263779904729376
100 Unknown_Attribute 0x0032 000 000 000 Old_age
Always - 4420
170 Unknown_Attribute 0x0032 000 000 000 Old_age
Always - 1712
171 Unknown_Attribute 0x0032 000 000 000 Old_age
Always - 0
172 Unknown_Attribute 0x0032 000 000 000 Old_age
Always - 0
174 Unknown_Attribute 0x0030 000 000 000 Old_age
Offline - 39
177 Wear_Leveling_Count 0x0000 000 000 000 Old_age
Offline - 2
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
184 End-to-End_Error 0x0032 100 100 090 Old_age
Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age
Always - 0
189 Unknown_SSD_Attribute 0x0000 038 080 000 Old_age
Offline - 103084458022
194 Temperature_Celsius 0x0022 038 080 000 Old_age
Always - 38 (Min/Max 24/80)
195 Hardware_ECC_Recovered 0x001c 120 120 000 Old_age
Offline - 193278240
196 Reallocated_Event_Count 0x0033 100 100 003 Pre-fail
Always - 0
198 Offline_Uncorrectable 0x0010 118 118 000 Old_age
Offline - 91336774516736
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age
Always - 0
201 Unknown_SSD_Attribute 0x001c 120 120 000 Old_age
Offline - 193278240
204 Soft_ECC_Correction 0x001c 120 120 000 Old_age
Offline - 193278240
230 Unknown_SSD_Attribute 0x0013 100 100 000 Pre-fail
Always - 100
231 Temperature_Celsius 0x0013 100 100 010 Pre-fail
Always - 0
232 Available_Reservd_Space 0x0000 000 000 000 Old_age
Offline - 6
233 Media_Wearout_Indicator 0x0000 000 000 000 Old_age
Offline - 3066
234 Unknown_Attribute 0x0032 000 000 000 Old_age
Always - 2208
241 Total_LBAs_Written 0x0032 000 000 000 Old_age
Always - 2208
242 Total_LBAs_Read 0x0032 000 000 000 Old_age
Always - 2441
SMART Error Log not supported
SMART Self-test Log not supported
SMART Selective self-test log data structure revision number 0
Note: revision number not 1 implies that no selective self-test has ever
been run
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
Vlado.
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