Hi all,
I have the chance to purchase a used 32 GByte USB stick of type Kingston DataTraveler 200 at a low price. On the other hand, I heard from difficulties to use this stick under LINUX - somebody can confirm this?
Kind regards
Joachim Backes joachim.backes@rhrk.uni-kl.de
On Fri, 2011-04-15 at 15:59 +0200, Joachim Backes wrote:
Hi all,
I have the chance to purchase a used 32 GByte USB stick of type Kingston DataTraveler 200 at a low price. On the other hand, I heard from difficulties to use this stick under LINUX - somebody can confirm this?
I've used several Kingston sticks of various sizes with no problems at all, though not as large as 32GB. What problems have you heard of?
poc
On 04/15/2011 04:46 PM, Patrick O'Callaghan wrote:
On Fri, 2011-04-15 at 15:59 +0200, Joachim Backes wrote:
Hi all,
I have the chance to purchase a used 32 GByte USB stick of type Kingston DataTraveler 200 at a low price. On the other hand, I heard from difficulties to use this stick under LINUX - somebody can confirm this?
I've used several Kingston sticks of various sizes with no problems at all, though not as large as 32GB. What problems have you heard of?
poc
I heard that such sticks are only usable if the partitions are formatted in fat32; formatting the partitions in ext3 or ext4 makes such partitions and the total stick unusable, that means, the partitions can't be mounted.
Kind regards
Joachim Backes wrote:
I heard that such sticks are only usable if the partitions are formatted in fat32; formatting the partitions in ext3 or ext4 makes such partitions and the total stick unusable, that means, the partitions can't be mounted.
I'm not sure who told you this, but the file system bears no significance.
On 04/15/2011 05:16 PM, JD wrote:
On 04/15/2011 06:59 AM, Joachim Backes wrote:
Hi all,
I have the chance to purchase a used 32 GByte USB stick of type Kingston DataTraveler 200 at a low price. On the other hand, I heard from difficulties to use this stick under LINUX - somebody can confirm this?
Kind regards
Joachim Backesjoachim.backes@rhrk.uni-kl.de
I have a 256GB version and it works under Linux just fine.
Good to hear. But as I understand you right, you have no experience with that 32GB stick.
Thanks and kind regards
Joachim Backes joachim.backes@rhrk.uni-kl.de
Joachim Backes wrote:
I heard that such sticks are only usable if the partitions are formatted in fat32; formatting the partitions in ext3 or ext4 makes such partitions and the total stick unusable, that means, the partitions can't be mounted.
Michael Cronenworth wrote:
I'm not sure who told you this, but the file system bears no significance.
Mostly right: but many sticks have firmware and hardware performance limitations when they aren’t used with FAT32:
https://lwn.net/Articles/428584/ says
In contrast, the more common SD cards and USB flash drives are very sensitive to specific access patterns and can show very high latencies for writes unless they are used with the preformatted FAT32 file layout.
and
Ideally, the drive expects all data to be written in full segments, which is what happens when recording a live video or storing a music collection on a FAT32 filesystem.
and
Additionally, only one segment can be open at a time; alternating between two segments will cause garbage collection at every access, slowing write speeds to a mere 33KB/s. That said, the FAT file table area (from 4MB to 8MB) is managed differently, enabling small writes to be done efficiently there.
Hope this helps,
James.
On 04/15/2011 10:29 AM, James Wilkinson wrote:
Joachim Backes wrote:
I heard that such sticks are only usable if the partitions are formatted in fat32; formatting the partitions in ext3 or ext4 makes such partitions and the total stick unusable, that means, the partitions can't be mounted.
Michael Cronenworth wrote:
I'm not sure who told you this, but the file system bears no significance.
Mostly right: but many sticks have firmware and hardware performance limitations when they aren’t used with FAT32:
https://lwn.net/Articles/428584/ says
In contrast, the more common SD cards and USB flash drives are very sensitive to specific access patterns and can show very high latencies for writes unless they are used with the preformatted FAT32 file layout.
and
Ideally, the drive expects all data to be written in full segments, which is what happens when recording a live video or storing a music collection on a FAT32 filesystem.
and
Additionally, only one segment can be open at a time; alternating between two segments will cause garbage collection at every access, slowing write speeds to a mere 33KB/s. That said, the FAT file table area (from 4MB to 8MB) is managed differently, enabling small writes to be done efficiently there.
Hope this helps,
James.
Yes - I did see considerable read/write delays after formatting a flash that has firmware, with Ext3 filesystem.
On Friday April 15 2011 16:59:31 Joachim Backes wrote:
Hi all,
I have the chance to purchase a used 32 GByte USB stick of type Kingston DataTraveler 200 at a low price. On the other hand, I heard from difficulties to use this stick under LINUX - somebody can confirm this?
Kind regards
Joachim Backes joachim.backes@rhrk.uni-kl.de
I have a SanDisk 32 GB flash drive with fedora 14 installed on it, running from it at the moment. problems occur as often as when using a regular hard drive. the speed is very good as far as I can judge.
YB.