Jump to content
Corsair Community

The write speed is seems to be slow. Please advice.


koreec

Recommended Posts

Hello the RAM GUY,

 

I recently bought a new USB flash Voyager 16GB (non GT). And the write speed is a little disappointed. I made a few tests using the suggestions form other posts.

 

Here are my results:

 

SDFormatter 2.0.0.3

 

Please note that FLASH ERASE ON is not supported on 16 GB (not GT) Voyager (according to the program warning message)

 

Full Format Option

HDBench speed test results:

Read Write RRead RWrite Drive

31200 9374 30899 364 F:\100MB

 

Actual speed ~4Mb/sec

file size 1400 Mb Time 5 min 50 sec

 

Quick Format option

HDBench speed test results:

Read Write RRead RWrite Drive

30476 7691 29115 362 F:\100MB

 

Actual speed ~4.3 Mb/sec

file size 1400 Mb Time 5 min 25 sec

 

Full Format Option

Format size adjustment ON

HDBench speed test results:

Read Write RRead RWrite Drive

30750 8191 29124 360 F:\100MB

 

Actual speed ~4.1 Mb/sec

file size 1400 Mb Time 5 min 38 sec

 

FORMAT F: /FS:NTFS /A:16K

Insert new disk for drive F:

and press ENTER when ready...

The type of the file system is FAT32.

The new file system is NTFS.

Verifying 15420M

 

Format cannot run because the volume is in use by another

process. Format may run if this volume is dismounted first.

ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID.

Would you like to force a dismount on this volume? (Y/N) Y

Volume dismounted. All opened handles to this volume are now invalid.

Volume label (ENTER for none)?

Creating file system structures.

Format complete.

15790064 KB total disk space.

15724128 KB are available.

 

HDBench speed test results:

Read Write RRead RWrite Drive

17999 7489 25897 1449 F:\100MB

 

Actual speed ~1.2 Mb/sec

file size 1400 Mb Time ~ 20 min

 

FORMAT F: /FS:NTFS /A:512

Insert new disk for drive F:

and press ENTER when ready...

The type of the file system is FAT32.

The new file system is NTFS.

Verifying 15420M

Volume label (ENTER for none)?

Creating file system structures.

Format complete.

15790079 KB total disk space.

15720488 KB are available.

 

HDBench speed test results:

Read Write RRead RWrite Drive

24818 4569 24179 349 F:\100MB

 

Actual speed ~1.2Mb/sec

file size 1400 Mb Time ~22 min

 

FORMAT F: /FS:FAT32 /U

Insert new disk for drive F:

and press ENTER when ready...

The type of the file system is NTFS.

The new file system is FAT32.

Verifying 15420M

 

Format cannot run because the volume is in use by another

process. Format may run if this volume is dismounted first.

ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID.

Would you like to force a dismount on this volume? (Y/N) Y

Volume dismounted. All opened handles to this volume are now invalid.

Initializing the File Allocation Table (FAT)...

Volume label (11 characters, ENTER for none)?

Format complete.

15 774 656 KB total disk space.

15 774 648 KB are available.

 

8 192 bytes in each allocation unit.

1 971 831 allocation units available on disk.

 

32 bits in each FAT entry.

 

Volume Serial Number is 6485-DF8A

 

HDBench speed test results:

Read Write RRead RWrite Drive

31343 7153 30622 359 F:\100MB

 

 

Actual speed ~4Mb/sec

file size 1400 Mb Time 6 min 5 sec

 

FORMAT F: /FS:NTFS /U

Insert new disk for drive F:

and press ENTER when ready...

The type of the file system is NTFS.

Verifying 15420M

Volume label (ENTER for none)?

Creating file system structures.

Format complete.

15790076 KB total disk space.

15723848 KB are available.

 

HDBench speed test results:

Read Write RRead RWrite Drive

24179 3777 22207 346 F:\100MB

 

Actual speed ~1.1 Mb/sec

file size 1400 Mb Time ~24 min 30 sec

 

 

The only thing I found about write speed is http://www.ciao.co.uk/Corsair_Flash_Voyager_USB_2_0_USB_flash_drive_16_GB__6627787

There is a product description as well as user review. In product description you can find that declared write speed is 7Mb/s (in the review you can find 5.5 Mb/s). Also you mentioned that 8 Mb/s is according to specs. However what should I take into account when comparing the speeds: the write speed that shown in HDBench or the actual write speed?

The maximum I get for my 16 Gb Voyager is 4.3 Mb/sec.

 

Do you think that it is a normal write speed for this device?

 

Thank you in advance for you response

Link to comment
Share on other sites

  • Corsair Employees

Please try and format the drive with the Format utility from the SD-CARD Organization. Then run the test again and see if that helps.

Then remove the drive and reinsert it and please try the HD-Bench software to test the performance. With 100MB files size

The write should be about 8 MBps and read should be about 23-30MBps.

If you still have problems we can get it or them replaced, please use the RMA request found in TSXpress or follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it!

Link to comment
Share on other sites

Hello the RAM GUY,

In product description you can find that declared write speed is 7Mb/s (in the review you can find 5.5 Mb/s). Also you mentioned that 8 Mb/s is according to specs. However what should I take into account when comparing the speeds: the write speed that shown in HDBench or the actual write speed?

 

The maximum I get for my 16 Gb Voyager is 4.3 Mb/sec.

 

Do you think that it is a normal write speed for this device?

 

Thank you in advance for you response

 

Using the SD-CARD software, I achieved an average 10MB/s read speed according to HDBench 3.40 using its 100MB file. The problem with the SD-CARD software is cluster size. It formats FAT32 with 32K clusters. This is fine if your transferring large GB-sized files, but crappy if you typically transfer smaller MB- and KB-sized files.

 

As a result, the improved speed is somewhat of an illusion. Its mostly due to a reduction in FAT writing and therefore reduced controller activity. Then there appears to be some value in locating the partition at or about 8192. This is something I am looking into currently and will report back once I have conclusive evidence that it can be done with ease and with free software.

 

Give the SD-CARD software a try. You may get better results.

 

CurlySue

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...