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View Full Version : SSD / HDD Alignment made wonders for me!



Matrix Leader
03-16-2013, 02:07 AM
Today I was running the AS SSD Benchmark and I noticed that there is a warning message saying: "31K BAD" so I googled it and found out that happens due to misalignment in the SSD/HDD sectors or whatever... due to new drives using a 4096 Byte cluster size and the OS telling the SSD/HDD to write 512 Byte clusters (my understanding may be wrong but the whole point is about cluster misalignment)

The solution was to either format my SSD in a low level format or to use the Paragon Alignment Tool which I did, the whole process took about 15 to 20 mins on my 256 GB SSD (I chose the fast method without power failure recovery)

I was thinking this is some gimmick from Paragon to get money but it isn't!

look at the stores for your self!

AS SSD Benchmark with IRST 11.5.0.1207 (Before Alignment)

http://img404.imageshack.us/img404/4503/asssdbenchmarkwithirst1.png (http://imageshack.us/photo/my-images/404/asssdbenchmarkwithirst1.png/)

AS SSD Benchmark with IRST 11.5.0.1207 (After Alignment)

http://img441.imageshack.us/img441/4503/asssdbenchmarkwithirst1.png (http://imageshack.us/photo/my-images/441/asssdbenchmarkwithirst1.png/)

CrystalDiskMark with IRST 11.5.0.1207 (Before Alignment)

http://img27.imageshack.us/img27/4930/crystaldiskmarkwithirst.png (http://imageshack.us/photo/my-images/27/crystaldiskmarkwithirst.png/)

CrystalDiskMark with IRST 11.5.0.1207 (After Alignment)

http://img27.imageshack.us/img27/9213/crystaldiskmarkwithirstw.png (http://imageshack.us/photo/my-images/27/crystaldiskmarkwithirstw.png/)


Paragon Alignment Tool (http://www.paragon-software.com/home/partition-alignment/)

or

Free Method using Gparted (by LifeHacker) (http://lifehacker.com/5837769/make-sure-your-partitions-are-correctly-aligned-for-optimal-solid-state-drive-performance)

rewben
03-16-2013, 04:00 AM
@DanishKid, thanks this is a good guide. i always wonder (but don't bother to find out) what a 4k cluster misalignment is. i never had that issue (i.e. red warning text in as ssd benchmark) most probably because i always clean the disk up before i do a clean install.

Matrix Leader
03-16-2013, 05:19 AM
well I would've never known about this misalignment but thanks to AS SSD Benchmark I came to know about it and fixed the issue to get better performance

Matrix Leader
03-16-2013, 05:30 AM
very informative post from another forum member:


The LITEONIT LAT-256M2S ATA isn't an advanced format drive; it uses a conventional 512 byte sector size. So the problem you've encountered isn't due to 4K sector misalignment. It was due the drive being aligned at 31K, which is not evenly divisble by a 512 byte sector size i.e., 4096/512=8, 2048/512=4, 1024/512=2, but 31,744/512=62. Note that the Paragon alignment tool set the offset on your SSD at 2048.

This problem arises when users manually partition the drive, prior to installing the OS, but fail to specify an offset that's evenly divisible by 512 bytes. It also occurs when restoring a disk image created by software that didn't preserve the correct alignment, even though the image was made from a correctly aligned drive.

The native Windows 7 imaging utility, recent versions of Acronis and Paragon (among several others) software will all preserve correct alignment when creating an image or backup. The Windows 7 installer will automatically set the correct offset only when a fresh installation is done on an unallocated drive, or a manually partitioned drive that's already correctly offset.


.

rewben
03-16-2013, 06:47 AM
ah.. that's why i don't have such a problem.

Vicodin
03-16-2013, 08:38 AM
Well here is my Crystal Disk mark after some tweaks, still more to do. (What I get for not fresh installing)

18382

Here is my Crystal Disk mark after tweaking fancy cache :)

18383

Just thought I would show you this in case you wanted to see how fast these things can really go :)

rewben
03-16-2013, 08:51 AM
it's a ram-based cache; sure it will boost things up a whole lot :)

my ram disk:
18387

Vicodin
03-16-2013, 08:59 AM
it's a ram-based cache; sure it will boost things up a whole lot :)

my ram disk:
18387

NICE!! If you don't mind me asking, what settings are you using?

18390

Sorry for derailing your thread... lol

NEVERMIND! Just realized it is an ACTUAL ramDisk. Can you use a ramDisk for all temp stuff? Like downloads folder, etc?

Vicodin
03-16-2013, 09:02 AM
Today I was running the AS SSD Benchmark and I noticed that there is a warning message saying: "31K BAD" so I googled it and found out that happens due to misalignment in the SSD/HDD sectors or whatever... due to new drives using a 4096 Byte cluster size and the OS telling the SSD/HDD to write 512 Byte clusters (my understanding may be wrong but the whole point is about cluster misalignment)

The solution was to either format my SSD in a low level format or to use the Paragon Alignment Tool which I did, the whole process took about 15 to 20 mins on my 256 GB SSD (I chose the fast method without power failure recovery)

I was thinking this is some gimmick from Paragon to get money but it isn't!


Hmm.. I may have to take a look at this Paragon. I am not getting the benches I should be. I also cloned my HDD to my SSD...

rewben
03-16-2013, 09:07 AM
no i don't use fancycache. the speed of plain ssd is fine to me lol! to set up ram disk (http://rog.asus.com/forum/showthread.php?28252-I-have-no-idea-what-to-do-with-16GB-of-RAM&p=216013&viewfull=1#post216013) is super simple.

i will put in a plextor 256gb m5m soon (hopefully next weekend if i had time). yeah it's time to test that fancycache (msata form factor is slightly slower than 'normal' ssd for now)

Matrix Leader
03-16-2013, 09:13 AM
Well here is my Crystal Disk mark after some tweaks, still more to do. (What I get for not fresh installing)

18382

Here is my Crystal Disk mark after tweaking fancy cache :)



Your benchmarks are much higher than mine even though I aligned my SSD

do you have the same SSD that I have? LITEONIT LAT-256M2S?

what tweaks can I make?

rewben
03-16-2013, 09:32 AM
@DanishKid,

note that there are a number of factors affecting those numbers. for one, if you use rst driver, different versions of the driver itself affects the 'performance'. you need to test them to find out. another one is the grade of the ssd. there is a difference between consumer- and enthusiast-grade ssds.

for the fun of numbers here's my ocz vertex 4:
18391

however, the truth is this: don't look at numbers. it's nothing but some fun things to do. what matters is whether the drive serves you well. many are happy users of consume-grade ssds, and performance/enthusiast ssds often do them no good but to pay extra for nothing practically useful.

Matrix Leader
03-16-2013, 09:41 AM
I am using the latest IRST from ASUS for my Notebook which is IRST 11.5.0.1207

I know there are newer IRST drivers but I'm afraid they may be targeted towards Desktops and not Notebooks

rewben
03-16-2013, 09:47 AM
don't be afraid. just be prepared for the worst (i do back up the full system before i use a new driver). i'm not sure if there are really optimizations for desktops only.

until now, i have had no problem when i played with them.

Matrix Leader
03-16-2013, 09:57 AM
I just found this on the ASUS website!! It's for another notebook but as long as it's for a notebook this way it's safer to try :)

IRST 11.7.0.1013 (http://dlcdnet.asus.com/pub/ASUS/nb/DriversForWin8/IRST/IRST_Intel_Win7_8_64_Z11701013.zip)

eojlin
12-10-2013, 06:03 AM
If I choose not to buy the Paragon Allignment Tool... what's a low level format and what tool do you use to do this (FDisk)?

rewben
12-10-2013, 03:57 PM
hi @eojlin, usually windows will take care of this. just verify that it's aligned. (with tools like AS SSD Benchmark (http://www.alex-is.de/PHP/fusion/downloads.php?cat_id=4&download_id=9))

eojlin
12-11-2013, 05:34 AM
hi @eojlin, usually windows will take care of this. just verify that it's aligned. (with tools like AS SSD Benchmark (http://www.alex-is.de/PHP/fusion/downloads.php?cat_id=4&download_id=9))
Thanks!

Gps3dx
12-17-2015, 10:10 PM
Don't confuse "alignment offset" with "file allocation unit (cluster) size".
Read here more about the difference. (https://technet.microsoft.com/en-us/library/dd758814(v=sql.100).aspx)