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PerfectDisk - Double Pass?

post #1 of 4
Thread Starter 
Is there any way to make perfect disk do a double pass in smartplacement instead of a single?

I've got a file called FEAR.Arch00 that is really large (around 3GB) that has fragments and no matter how many times I defrag using smartplacement, it will never go away.

I'm able to defrag it if I use the 'defrag only' option, but then as soon as I do smartplacement again to get everything in order, its once again fragmented.

I've read that large files have trouble defragmenting during single pass runs, but I've found no option to change it.
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post #2 of 4
There are a few reasons why this might be happening.

Usually, this happens because large files may have to fragment around unmovable files during a smart placement. Some of the more obvious being Metadata, Volume information (system restore) and any file to which access is denied / excluded.

Also, the importance of files is measured by modified date (and type for certain files) and so it is possible for a large file to contain some fragments for the overall health of the disk - particularly the consolidation of free space.

If you have a really important file that you want to ensure remains defragmented, try this:

Used the selected files option (single file defrag in v8) to browse out and defrag this one file. Once that is complete, add the file to the excluded files list. (right click on the drive, drive properties, excluded files)

That will ensure that the next time you run a smart placement that large file will be ignored, and your other smaller files will instead by written around it. Be aware that some other file may fragment around it, but it is up to you to judge which files are more important to you.

If anything, submit a support request to us here:
http://www.raxco.com/support/nt_email.cfm

- Raxco Support
post #3 of 4
Thread Starter 
Hey, thanks for the help.
That makes sense and I think that's exactly the problem. There are a few excluded files where the large file is trying to be placed.
I guess I was just wondering whether it would be better to do smartplacement regardless of the fragements, or if it would benefit me more to get rid of the fragments but lose free space.
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NEW BUILD!!!!
(19 items)
 
  
CPUMotherboardGraphicsHard Drive
i7 2600k / 4.5ghz @ 1.32v Asus P8Z68-V PRO/GEN3 EVGA GTX 560 Ti Crucial m4 
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WD Black WD Black LG Bluray Reader Corsair H60 
OSMonitorKeyboardPower
W7 Pro x64 Acer H233H G15 Corsair HX750 
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HAF X - Blue Edition G500 X-Fi Elite Pro nMediaPC LCD 
Other
Rosewill 74-in-1 card reader 
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post #4 of 4
Quote:
Originally Posted by raxcosupport View Post
There are a few reasons why this might be happening.

Usually, this happens because large files may have to fragment around unmovable files during a smart placement. Some of the more obvious being Metadata, Volume information (system restore) and any file to which access is denied / excluded.

Also, the importance of files is measured by modified date (and type for certain files) and so it is possible for a large file to contain some fragments for the overall health of the disk - particularly the consolidation of free space.

If you have a really important file that you want to ensure remains defragmented, try this:

Used the selected files option (single file defrag in v8) to browse out and defrag this one file. Once that is complete, add the file to the excluded files list. (right click on the drive, drive properties, excluded files)

That will ensure that the next time you run a smart placement that large file will be ignored, and your other smaller files will instead by written around it. Be aware that some other file may fragment around it, but it is up to you to judge which files are more important to you.

If anything, submit a support request to us here:
http://www.raxco.com/support/nt_email.cfm

- Raxco Support
very informative + rep
 
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ESXi Server
(10 items)
 
HTPC
(13 items)
 
CPUMotherboardGraphicsRAM
i7-4790K Asus Sabertooth Mark 2 Radeon HD 6950 GSkill Sniper Series 
Hard DriveCoolingOSMonitor
Samsung XP941 Noctura NH-D14 8.1 Pro QNIX 27" @ 1440, AOC 27" @ 1080, Dell 24" @ 1080 
KeyboardPowerCaseMouse
Corsair K95 PC&P 750 NZXT H2 Logitech G500s 
CPUHard DriveHard DriveHard Drive
Phenom II x4 965 WE Red Seagate Intel SSD 
Hard DriveCoolingOSOS
WR Raptor  Silenx Fans x2 120mm Win 7 x2 Unraid 
OSCase
pfsense Rackmount 16 bay hot-swap 
CPUMotherboardGraphicsRAM
i3 2100t Gigabyte integrated 2x 8GB GSkill 
Hard DriveCoolingOSMonitor
OCZ SSD Stock Win7 - Plex Shell Sony XBR2 
PowerCase
Generic 350 watt Repurposed Vidabox 
  hide details  
Reply
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