removing files doesn't free the space

mirto · 2012-07-14 17:08:18

[root@mirto ~]# fsck /dev/sda4 -f -v
fsck from util-linux 2.21.2
e2fsck 1.42.4 (12-June-2012)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

   70095 inodes used (1.78%)
    3835 non-contiguous files (5.5%)
      45 non-contiguous directories (0.1%)
         # of inodes with ind/dind/tind blocks: 0/0/0
         Extent depth histogram: 69435/622
14948055 blocks used (94.70%)
       0 bad blocks
       1 large file

   58500 regular files
   11558 directories
       0 character device files
       0 block device files
       0 fifos
   16113 links
      25 symbolic links (25 fast symbolic links)
       3 sockets
--------
   86199 files

smartctl --all /dev/sda :

[root@mirto lena]# smartctl -a /dev/sda
smartctl 5.42 2011-10-20 r3458 [i686-linux-3.4.4-2-ARCH] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     TOSHIBA MK8037GSX
Serial Number:    67P8ABMHA
Firmware Version: DL230M
User Capacity:    80,026,361,856 bytes [80.0 GB]
Sector Size:      512 bytes logical/physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   7
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Sat Jul 14 19:18:45 2012 CEST
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:  (0x02)	Offline data collection activity
					was completed without error.
					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: 		(  120) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					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: 	 (  46) minutes.
SCT capabilities: 	       (0x0001)	SCT Status 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     0x000b   100   100   050    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   100   100   050    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0027   100   100   001    Pre-fail  Always       -       1071
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       5494
  5 Reallocated_Sector_Ct   0x0033   100   100   050    Pre-fail  Always       -       9
  7 Seek_Error_Rate         0x000b   100   100   050    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   100   100   050    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0032   077   077   000    Old_age   Always       -       9304
 10 Spin_Retry_Count        0x0033   209   100   030    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       2893
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       268
193 Load_Cycle_Count        0x0032   060   060   000    Old_age   Always       -       404340
194 Temperature_Celsius     0x0022   100   100   000    Old_age   Always       -       41 (Min/Max 4/66)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       7
197 Current_Pending_Sector  0x0032   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
220 Disk_Shift              0x0002   100   100   000    Old_age   Always       -       120
222 Loaded_Hours            0x0032   085   085   000    Old_age   Always       -       6164
223 Load_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
224 Load_Friction           0x0022   100   100   000    Old_age   Always       -       0
226 Load-in_Time            0x0026   100   100   000    Old_age   Always       -       327
240 Head_Flying_Hours       0x0001   100   100   001    Pre-fail  Offline      -       0

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%         1         -

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.

All seems very nice, but what does that mean?
I like the line about 0 bad blocks

mkkot · 2012-07-14 18:52:40

It means your filesystem is fine, so there's another cause. 0 bad blocks from fsck AFAIK tells about filesystem, not HDD. You should pay attention to those lines:

5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 9
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 7

It means you have 9 HDD bad blocks, which were relocated by HDD firmware. Nothing to worry about if they won't grow. Check from time to time. Also run smartctl /dev/sda4 -t long as I wrote above, it can be more conclusive about those blocks.

197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0

tells everything should be okay, though.

Anyway, I believe there is other cause of space not being freed than fs or HDD.

Last edited by mkkot (2012-07-14 18:53:11)

x33a · 2012-07-14 18:58:38

Hmm.., smart scan looks fine. Only thing is that your drive is quite old, about 9304 hours old.

Though it looks fine, i would still suggest you run an extended smart test as mkkot suggested

# smartctl -t long

It'll probably take about half an hour, and will give a clear indication of the status of your drive.

Also,

Try setting the reserved block percentage to something lower

# tune2fs -m 1 /dev/sda4

edit: run this command after unmounting the partition.

Last edited by x33a (2012-07-14 19:00:35)

mirto · 2012-07-17 14:59:59

x33a wrote:

Try setting the reserved block percentage to something lower
# tune2fs -m 1 /dev/sda4

done. I got 2.8G back. That is really nice to have. Thanx.

But it didn't change the situation - I mean that removing files doesn't free more space.

I did extended smart test, it was supposed to last 46min and it took maybe 2 hours. There is no new info with 'smartctl -a /dev/sda' (except test count).
After further reading about the results, it looks quite not very optimistic.

If you have any ideas, let me know.

Thanx for your kind help
Lena

x33a · 2012-07-17 15:44:04

One last thing to try would be to backup all your data somewhere else, and reformat the partition again. I know it's a bit of a pain, but i believe this should fix the problem.

IsoSpandy · 2022-06-16 00:30:26

I have a theory and I know its a very old post. But are you using btrfs with timeshift?

Last edited by IsoSpandy (2022-06-16 00:30:39)

2ManyDogs · 2022-06-16 01:02:36

And the OP has not been back for ten years. Please do not necrobump.

Closing.

Arch Linux

#26 2012-07-14 17:08:18

Re: removing files doesn't free the space

#27 2012-07-14 18:52:40

Re: removing files doesn't free the space

#28 2012-07-14 18:58:38

Re: removing files doesn't free the space

#29 2012-07-17 14:59:59

Re: removing files doesn't free the space

#30 2012-07-17 15:44:04

Re: removing files doesn't free the space

#31 2022-06-16 00:30:26

Re: removing files doesn't free the space

#32 2022-06-16 01:02:36

Re: removing files doesn't free the space

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