How can I test to see if there something wrong with my SSD?
So a few weeks ago I update to 17.10 and at pretty much the same time I updated to Android Studio 3, and it was probably a mistake updating both as now I don't know where the problem lies.
Basically it seems like disk IO has gotten really bad. At first I noticed I was swapping so I doubled my ram (32 gigs now) and I'm never swapping anymore. But the machine still pretty much freezes when disk IO happens. By freezes I mean it will get really slow, to the point that I can type and I won't see what I'm typing for a few seconds, often I'll get a long string of one key when that happens.
When I go to commit my code, Android Studio will do an analysis of the code and the UI just freezes while it does that. Takes a few seconds. None of these issues used to happen before updating both things.
Also, when the cloud station backup runs to my NAS, it gets ridiculously slow.
I have a Samsung SSD 850 PRO 512GB SSD.
So what can I run to see what the issue is?
Thanks.
Edit:
Smartctl output:
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.13.0-16-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke,
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 850 PRO 512GB
Serial Number: S250NSAG809789J
LU WWN Device Id: 5 002538 8a0af305f
Firmware Version: EXM02B6Q
User Capacity: 512,110,190,592 bytes [512 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, ATA8-ACS T13/1699-D revision 4c
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Tue Nov 28 16:22:20 2017 CST
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: (0x53) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. No Offline surface scan supported. Self-test supported. No 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: ( 272) minutes.
SCT capabilities: (0x003d) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table supported.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0 9 Power_On_Hours 0x0032 095 095 000 Old_age Always - 23126 12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 75
177 Wear_Leveling_Count 0x0013 098 098 000 Pre-fail Always - 117
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always - 0
183 Runtime_Bad_Block 0x0013 100 100 010 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0032 070 057 000 Old_age Always - 30
195 ECC_Error_Rate 0x001a 200 200 000 Old_age Always - 0
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 34
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 37060089586
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1 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.df -i output:
Filesystem Inodes IUsed IFree IUse% Mounted on
udev 4096227 613 4095614 1% /dev
tmpfs 4111096 1024 4110072 1% /run
/dev/sda1 29908992 4301747 25607245 15% /
tmpfs 4111096 524 4110572 1% /dev/shm
tmpfs 4111096 5 4111091 1% /run/lock
tmpfs 4111096 18 4111078 1% /sys/fs/cgroup
tmpfs 4111096 17 4111079 1% /run/user/122
tmpfs 4111096 458 4110638 1% /run/user/1000
/home/mydir/.Private 29908992 4301747 25607245 15% /home/mydir3 Answers
Install Gnome Disk Utility and check tests for wear-leveling-count and SMART Data or any similar.
The higher the reported percentage, the more worn your SSD is, which means you are more likely to encounter problems.
Install using:
apt-get install gnome-disk-utility
Launch via command line
sudo palimpsest
or via the application menu under the name Disk Utility.
2Edit: with respect to the fact I forgot not everyone would know this: Smart normalized data counts down not up!
The specific command you're likely looking for is:
# smartctl -a /dev/sda | grep Media_Wearout_Indicator
this higher this is, the more likely you are to run into issues. as an aside I would recommend considering replacing your drive after this hits:
50% - Mission Critical Drives (things that, for reasons beyond the scope here are NEEDED to be accessible no matter what.)
30% - your /home drive (your movies/music/personal files, things you care about having at hand)
20% everything else (drives only brought online for backups before being committed to cold-storage, drives that hold OSes you only use occasionally, etc)
According to your log output, you've never run a smart test on the drive. There are a couple ways you can do this. One way is via the GUI as described in my answer here.
Another way is to issue the command via the command line as described by the answer here
Results of any tests are added to the log as shown in the snippet of output from the command sudo smartctl -a /dev/sda below from my TOSHIBA THNSNH128GBST SSD:
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 14965 -
# 2 Short offline Completed without error 00% 1955 -
# 3 Short offline Completed without error 00% 701 -
