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  #61 (permalink)  
Old 14th March, 2013, 08:36 PM
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TR...I did have several failed attempts...I wondered at the time, or rather right after the time, if I might be leaving things half done. At one point I finally re-booted and things went much better. (All this because I was having trouble following simple instructions and seemed to mess things up at lest once in every attempt and so would start over... some days are like that for me.

On to our new set of inquiries! ":O}
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How SSDs Really Work-screenshot-2013-03-14-12-35  
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  #62 (permalink)  
Old 14th March, 2013, 08:59 PM
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And now...for something completely different! !!

It took several minutes just as it did yesterday, but it doesn't seemed to have erased. The last shot I took the liberty of repeating todays look into trimfile existence.
Attached Thumbnails
How SSDs Really Work-screenshot-2013-03-14-12-33   How SSDs Really Work-screenshot-2013-03-14-12-35   How SSDs Really Work-screenshot-2013-03-14-12-45   How SSDs Really Work-screenshot-2013-03-14-12-54   How SSDs Really Work-screenshot-2013-03-14-13-04  

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  #63 (permalink)  
Old 15th March, 2013, 06:03 AM
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Well, you did everything correctly that time: well done.

It shows that it didn't trim yet, but as I said in a prior post, unfortunately this does not prove anything. A successful test proves that trim is working, but an unsuccessful result only shows that the action wasn't yet done; it does not prove the function isn't working at all. So don't worry, even if we don't get the desired result; if the correct line is in fstab, it is practically certain that it is working anyhow - it's just a matter of when.

Just to check something; show me [you do not have to be root]:
Code:
gedit /etc/fstab
We can check the important line again, to make sure it's correct. If it is OK, then try this: do the entire operation again, but this time, instead of 'sleep 180' try 'sleep 360'. This will give the system more time, maybe its routine isn't as immediate as some other systems. Depending on the setup, the trim function happens at intervals controlled by the OS. It knows what to do and when.
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  #64 (permalink)  
Old 15th March, 2013, 09:56 AM
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"Well, you did everything correctly that time: well done.

It shows that it didn't trim yet, but as I said in a prior post, unfortunately this does not prove anything. A successful test proves that trim is working, but an unsuccessful result only shows that the action wasn't yet done; it does not prove the function isn't working at all. So don't worry, even if we don't get the desired result; if the correct line is in fstab, it is practically certain that it is working anyhow - it's just a matter of when."

Well done except is not working!
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I've heard that linux community came up with better implemented security in it's latest Linux Mint Gold version, it's actually preventing the user to log in, thus posing 0 risk in contamining the computer with malware! Well done to the open source community!

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  #65 (permalink)  
Old 15th March, 2013, 10:35 AM
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Quote:
Originally Posted by chrisbard View Post
Well done except is not working!
Alas, you can't prove a negative.
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  #66 (permalink)  
Old 15th March, 2013, 10:49 AM
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Talking

Quote:
Originally Posted by Aedan View Post
Alas, you can't prove a negative.
Because no one in their right mind would want to!

example:

Can you prove God doesn't exist?

bwahahaha!
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I've heard that linux community came up with better implemented security in it's latest Linux Mint Gold version, it's actually preventing the user to log in, thus posing 0 risk in contamining the computer with malware! Well done to the open source community!

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  #67 (permalink)  
Old 15th March, 2013, 07:58 PM
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Part one of two parts:
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  #68 (permalink)  
Old 15th March, 2013, 08:35 PM
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Part ...whatever comes after one.

)I'm trying to lower expectations here.(

The last screen shot .... the spacing between " && 360" didn't seem right, a double space? so I tried it with a single space as well ... surprisingly, No file, yet it shows the previous data?

Query:

So this is trim saying it's marked for removal, indeed marked by the system AS removed; I can no longer reach it normally, but it has hasn't yet gotten around to actually erasing it?
Attached Thumbnails
How SSDs Really Work-screenshot-2013-03-15-12-15   How SSDs Really Work-screenshot-2013-03-15-12-21   How SSDs Really Work-screenshot-2013-03-15-12-27   How SSDs Really Work-screenshot-2013-03-15-12-30  
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  #69 (permalink)  
Old 16th March, 2013, 02:32 AM
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I would have to say that it's working; the data has changed from the time we wrote it to the time we deleted, waited, and read it again.

Somewhere in the 6 minutes we waited, it overwrote the original data, and some file was written by the system to that sector. If you played around with the sleep number, you would find a value that shows you all 00000s or all fffffs. You could do it if you want, varying the number from 0 - 360 and re-trying the test, but at the end of the day, I'd say it's sure that your trim function works.

I think you can relax now
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  #70 (permalink)  
Old 16th March, 2013, 07:34 PM
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Can't say how much I appreciate you walking me thought this TR!

Something in me just hates knowing there is a great optimization out there that I'm not using! Unfortunately as you know many of them are beyond my practical reach...that is I may get it installed, after much help and effort, but can't remember how to do it all again.

I've got my notes and this thread so I should be able to maintain this as destro's move ahead. Again thanks!

Zoom Zoom! ":O}
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Justice is foundation and Mercy ETERNAL
."
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  #71 (permalink)  
Old 10th June, 2013, 06:58 PM
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I don't suppose I can just use the guide you've given me for Unbutu Mint (worked find when I updated to Mint 15 BTW) In Debain mint?
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  #72 (permalink)  
Old 24th July, 2013, 11:43 PM
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After a unrelated new install, I went back to this to gain again what you gave me TR. I thought you might like to see the results. I also wished to ask you if this will work on a identical drive with 64 bit (Same as here) drive with Mint Debain on it? Let us beginn! ":O}

daniel@daniel-Mint-15-Sabertooth-64bitName ~ $ su
Password:
daniel-Mint-15-Sabertooth-64bitName daniel # dd if=/dev/urandom of=trimfile bs=1M count=3
3+0 records in
3+0 records out
3145728 bytes (3.1 MB) copied, 0.195999 s, 16.0 MB/s
daniel-Mint-15-Sabertooth-64bitName daniel # sync && hdparm --fibmap trimfile

trimfile:
filesystem blocksize 4096, begins at LBA 2048; assuming 512 byte sectors.
byte_offset begin_LBA end_LBA sectors
0 82610176 82614271 4096
2097152 82622464 82624511 2048
daniel-Mint-15-Sabertooth-64bitName daniel # hdparm --read-sector 82622464 /dev/sdd

/dev/sdd:
reading sector 82622464: succeeded
fa47 5949 a39e 2d04 75e9 40c9 1612 c72c
b8f6 1ebe 23c5 2ca3 db53 567e f07b 50cc
6c5f 6a58 765d ccb7 f757 e064 36e9 222d
c20a 98d5 c06b ef48 e795 ce63 80d0 197e
a46e f6d6 401c 248a 9849 cb89 01d7 ff7c
ea51 7237 ce6a b266 b6db 403d e223 7739
9632 57df 6367 ee43 7436 b8a5 3e4e dda3
0749 9d2c 5739 10cb 42e2 879b 0991 e46d
e41d 99ba 9b05 69c2 de11 f603 3a7c 9778
d7ec 3ee5 8212 064e 8c10 0384 af6a 07bc
68a0 ef07 bfc7 a78e 8669 c4ed 3382 2ef5
ac10 aab9 0517 09a6 ad07 ee12 278f f884
3888 5ae2 e667 9e24 e588 a42a c204 ffce
f144 52cf 9319 aceb 7915 0467 bd8a daef
67eb ab54 311c 17fe ae33 6773 2a99 290d
b609 07be bda1 1819 c201 1d0b 406b e7c9
b208 30fd 79a5 9ed2 112f a9ad 8b86 8f78
43b7 dd75 88b0 001b e1d3 7282 6fc7 cce2
b73b 770b a2bf e899 9925 23fb 5270 9abd
4350 82ff 5a02 11bc 3a8a 5a06 e150 571d
24af 67ac a114 db85 ca5c c252 e0bf c0a3
755e cfe9 abc6 b990 893b 8cb4 52c8 2c93
0cc1 fcfa 24c1 b696 fbac 63e9 7e1f 96ee
8605 3d9d eecc bc2e 2ab8 2652 45f5 503e
d149 e66e d455 3d24 1355 9f1b 8bd3 9ee9
5081 89f4 8f46 6d10 1131 c44b 0f21 c579
46fa 5404 ec95 155b 8e14 8547 4953 b1d9
bc88 50d2 45d3 1d19 10c6 f6f1 71cf f998
90bc 0fb1 13a0 f440 6a91 b732 8130 c9bc
04a8 4db6 1c4f c058 1141 e46f 251e 7b22
fbb3 05ad d4e6 6aea 6bb0 b42b 7276 dcde
c9a3 14eb 0904 32f3 582d 8dca 4a52 91b3
daniel-Mint-15-Sabertooth-64bitName daniel # rm trimfile && sync && sleep 180 && hdparm --read-sector 82622464 /dev/sdd

/dev/sdd:
reading sector 82622464: succeeded
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
daniel-Mint-15-Sabertooth-64bitName daniel #
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  #73 (permalink)  
Old 25th July, 2013, 01:14 AM
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Debain was less conclusive:

debain-sabertooth-64bit daniel # su
debain-sabertooth-64bit daniel # cd
debain-sabertooth-64bit ~ # dd if=/dev/urandom of=trimfile bs=1M count=3
3+0 records in
3+0 records out
3145728 bytes (3.1 MB) copied, 0.216724 s, 14.5 MB/s
debain-sabertooth-64bit ~ # sync && hdparm --fibmap trimfile

trimfile:
filesystem blocksize 4096, begins at LBA 63; assuming 512 byte sectors.
byte_offset begin_LBA end_LBA sectors
0 268710607 268716750 6144
debain-sabertooth-64bit ~ # hdparm --read-sector 268710607 /dev/sde

/dev/sde:
reading sector 268710607: succeeded
59fb b680 5713 bc03 4016 4900 bd94 00d4
77c3 bf08 bfe3 39ee cd04 03f0 a91b b3ec
59fc 7184 eecb fb55 43d4 614a 816c d227
5b17 7486 c577 bbb2 3213 4818 926f e505
5261 e0fb b5b9 be37 0faf ddc5 8406 bb56
7f21 2764 9f04 7a24 380b 82ba 55fa 706e
6c44 69d1 2c18 699c ffa0 02e7 ca1e c184
c897 2bb6 bb5d e014 3e1b b836 1d82 d298
1e0d cac1 83c3 b88d f143 22af cba0 112c
2310 3ac1 b424 3f82 37e0 08d8 df0e 57ff
a744 9529 40db 873c 0b54 4744 c770 f183
a2f2 dd7c 00b3 7fc3 8613 6fe9 b300 6c29
6c05 aa1d 052f 1990 95eb 4d0c 3e78 d676
3a15 fb6e 8e9e 3b37 29d6 6c1f dd0b 07ed
ef90 a941 9bef f5ad aa5d 31f5 f514 3ae5
d7d5 4f9e 3bea 7ce0 eadf 1f58 f743 5f5f
5f33 beb4 cea7 edf7 f58e 7431 f5ff f335
eb45 ea7b df7c 58e9 431f 5ff7 335f b45f
39be 30f9 388e cba8 b5ef f95e 9413 77e9
6377 f7a8 76d4 2635 d09c 6b17 919a 9df5
9358 3f69 0d72 a046 86bf 1c1f 2bef 78cd
9197 712c 0620 603b 0926 38f5 fe1f 4861
4369 e672 c69d f585 9461 f924 44ce efbe
cc72 33d8 cb0c eca7 86ea c886 59fa 1510
0757 0a3d 578c 98d8 7402 3a2a 8bc4 8b41
2353 af49 b874 bd3a 7113 6535 5fc6 6155
7c35 f81c 10c7 d42e 55f3 a7ad ee4b db37
7a87 86f2 c8d1 bf6e 0568 4677 2bb8 9e04
5e98 e48d 47b2 9e2a 64a0 6b0d 5a49 21ec
fb1a 4a7a b034 cf5d fd17 b453 9dcd e3e3
f891 6845 7b5b 6c7e b525 c400 a9cd fe23
7554 4130 0c2b d685 643a daa7 a14c b475
debain-sabertooth-64bit ~ # rm trimfile && sync && sleep 180 && hdparm --read-sector 268710607 /dev/sde

/dev/sde:
reading sector 268710607: succeeded
59fb b680 5713 bc03 4016 4900 bd94 00d4
77c3 bf08 bfe3 39ee cd04 03f0 a91b b3ec
59fc 7184 eecb fb55 43d4 614a 816c d227
5b17 7486 c577 bbb2 3213 4818 926f e505
5261 e0fb b5b9 be37 0faf ddc5 8406 bb56
7f21 2764 9f04 7a24 380b 82ba 55fa 706e
6c44 69d1 2c18 699c ffa0 02e7 ca1e c184
c897 2bb6 bb5d e014 3e1b b836 1d82 d298
1e0d cac1 83c3 b88d f143 22af cba0 112c
2310 3ac1 b424 3f82 37e0 08d8 df0e 57ff
a744 9529 40db 873c 0b54 4744 c770 f183
a2f2 dd7c 00b3 7fc3 8613 6fe9 b300 6c29
6c05 aa1d 052f 1990 95eb 4d0c 3e78 d676
3a15 fb6e 8e9e 3b37 29d6 6c1f dd0b 07ed
ef90 a941 9bef f5ad aa5d 31f5 f514 3ae5
d7d5 4f9e 3bea 7ce0 eadf 1f58 f743 5f5f
5f33 beb4 cea7 edf7 f58e 7431 f5ff f335
eb45 ea7b df7c 58e9 431f 5ff7 335f b45f
39be 30f9 388e cba8 b5ef f95e 9413 77e9
6377 f7a8 76d4 2635 d09c 6b17 919a 9df5
9358 3f69 0d72 a046 86bf 1c1f 2bef 78cd
9197 712c 0620 603b 0926 38f5 fe1f 4861
4369 e672 c69d f585 9461 f924 44ce efbe
cc72 33d8 cb0c eca7 86ea c886 59fa 1510
0757 0a3d 578c 98d8 7402 3a2a 8bc4 8b41
2353 af49 b874 bd3a 7113 6535 5fc6 6155
7c35 f81c 10c7 d42e 55f3 a7ad ee4b db37
7a87 86f2 c8d1 bf6e 0568 4677 2bb8 9e04
5e98 e48d 47b2 9e2a 64a0 6b0d 5a49 21ec
fb1a 4a7a b034 cf5d fd17 b453 9dcd e3e3
f891 6845 7b5b 6c7e b525 c400 a9cd fe23
7554 4130 0c2b d685 643a daa7 a14c b475
debain-sabertooth-64bit ~ #
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Justice is foundation and Mercy ETERNAL
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  #74 (permalink)  
Old 25th July, 2013, 02:22 AM
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Try it again with 'sleep 360' and see if more time allows it to show.
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  #75 (permalink)  
Old 25th July, 2013, 04:53 AM
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This IS interesting! I guess it was just laying in wait! I didn't get a chance to try 360! I also forgot to up date the block numbers":O}

daniel@daniel-Mint-15-Sabertooth-64bitName ~ $ su
Password:
daniel-Mint-15-Sabertooth-64bitName daniel # dd if=/dev/urandom of=trimfile bs=1M count=3
3+0 records in
3+0 records out
3145728 bytes (3.1 MB) copied, 0.182676 s, 17.2 MB/s
daniel-Mint-15-Sabertooth-64bitName daniel # sync && hdparm --fibmap trimfile

trimfile:
filesystem blocksize 4096, begins at LBA 2048; assuming 512 byte sectors.
byte_offset begin_LBA end_LBA sectors
0 188968192 188974335 6144
daniel-Mint-15-Sabertooth-64bitName daniel # hdparm --read-sector 82622464 /dev/sdd

/dev/sdd:
reading sector 82622464: succeeded
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
__________________
"Though all men live in ignorance before mystery,
they need not live in darkness...
Justice is foundation and Mercy ETERNAL
."
DKE

"All that we do is touched by Ocean
Yet we remain on the shore of what we know."
Richard Wilbur

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Last edited by Daniel ~; 25th July, 2013 at 04:58 AM.
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  #76 (permalink)  
Old 25th July, 2013, 05:14 AM
Daniel ~'s Avatar
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Join Date: September 2001
Location: Seattle Wa.
Posts: 45,605

360 coming up!

daniel@daniel-Mint-15-Sabertooth-64bitName ~ $ su
Password:
daniel-Mint-15-Sabertooth-64bitName daniel # cd
daniel-Mint-15-Sabertooth-64bitName ~ # dd if=/dev/urandom of=trimfile bs=1M count=3
3+0 records in
3+0 records out
3145728 bytes (3.1 MB) copied, 0.190532 s, 16.5 MB/s
daniel-Mint-15-Sabertooth-64bitName ~ # sync && hdparm --fibmap trimfile

trimfile:
filesystem blocksize 4096, begins at LBA 2048; assuming 512 byte sectors.
byte_offset begin_LBA end_LBA sectors
0 5748736 5754879 6144
daniel-Mint-15-Sabertooth-64bitName ~ # hdparm --read-sector 5748736 /dev/sde

/dev/sde:
reading sector 5748736: succeeded
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
daniel-Mint-15-Sabertooth-64bitName ~ # rm trimfile && sync && sleep 360 && hdparm --read-sector 5748736 /dev/sde

/dev/sde:
reading sector 5748736: succeeded
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
daniel-Mint-15-Sabertooth-64bitName ~ #
__________________
"Though all men live in ignorance before mystery,
they need not live in darkness...
Justice is foundation and Mercy ETERNAL
."
DKE

"All that we do is touched by Ocean
Yet we remain on the shore of what we know."
Richard Wilbur

[img]/forum/attachments/random-nonsense/16515-sigs-dan_drag.jpg[/img]
Subscribers! Ask Pitch about a Custom Sig Graphic

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  #77 (permalink)  
Old 25th July, 2013, 05:34 AM
Daniel ~'s Avatar
Chief BBS Administrator
 
Join Date: September 2001
Location: Seattle Wa.
Posts: 45,605

I have a really hard time doing this right....or knowing when I have done it right...here's another go....

daniel@daniel-Mint-15-Sabertooth-64bitName ~ $ su
Password:
daniel-Mint-15-Sabertooth-64bitName daniel # cd
daniel-Mint-15-Sabertooth-64bitName ~ # dd if=/dev/urandom of=trimfile bs=1M count=3
3+0 records in
3+0 records out
3145728 bytes (3.1 MB) copied, 0.184962 s, 17.0 MB/s
daniel-Mint-15-Sabertooth-64bitName ~ # sync && hdparm --fibmap trimfile

trimfile:
filesystem blocksize 4096, begins at LBA 2048; assuming 512 byte sectors.
byte_offset begin_LBA end_LBA sectors
0 305876984 305883127 6144
daniel-Mint-15-Sabertooth-64bitName ~ # hdparm --read-sector 305876984 /dev/sde

/dev/sde:
reading sector 305876984: succeeded
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
daniel-Mint-15-Sabertooth-64bitName ~ # rm trimfile && sync && sleep 360 && hdparm --read-sector 305876984 /dev/sde

/dev/sde:
reading sector 305876984: succeeded
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
daniel-Mint-15-Sabertooth-64bitName ~ #
__________________
"Though all men live in ignorance before mystery,
they need not live in darkness...
Justice is foundation and Mercy ETERNAL
."
DKE

"All that we do is touched by Ocean
Yet we remain on the shore of what we know."
Richard Wilbur

[img]/forum/attachments/random-nonsense/16515-sigs-dan_drag.jpg[/img]
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  #78 (permalink)  
Old 25th July, 2013, 08:46 AM
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As long as you put the correct edit in fstab I would not worry about it. It will perform the trim when it is needed, according to the system.
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  #79 (permalink)  
Old 25th July, 2013, 04:48 PM
Daniel ~'s Avatar
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Join Date: September 2001
Location: Seattle Wa.
Posts: 45,605

You mean as long as YOU put the correct Edit in my fstab....":O}

It would seem that you did! Many thanks!
__________________
"Though all men live in ignorance before mystery,
they need not live in darkness...
Justice is foundation and Mercy ETERNAL
."
DKE

"All that we do is touched by Ocean
Yet we remain on the shore of what we know."
Richard Wilbur

[img]/forum/attachments/random-nonsense/16515-sigs-dan_drag.jpg[/img]
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  #80 (permalink)  
Old 26th July, 2013, 05:11 AM
ThunderRd's Avatar
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Location: NYC native in northern Thailand
Posts: 2,232

Was this a new install, or not?

I've done nothing for you on any new install. We edited the fstab of the old one.

Let's not speculate; post your current /etc/fstab here so I can see it
__________________
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#2: Tt Shark, ASUS P5Q Pro Turbo, Q6600@3.8G, 4G HyperX-1600, Corsair HX850, CoolerMaster V10, 2xASUS 9600GT, 2xRaptor 74G RAID0, OCZ Vertex 4 SSD, Gentoo/siduction Linux [64-bit]
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