I have a 16GB usb stick running 11.3 on my laptop after the hard drive failed. It works fine with the latest kde and openoffice. Remarkable. A replacement hard drive is not possible. My question is about how long the stick will last. It looks as if the limit is around 10 000 writes. How long is that at eg. 24/7 for opensuse? L x -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Saturday 29 January 2011 19:42:04 lynn wrote:
I have a 16GB usb stick running 11.3 on my laptop after the hard drive failed. It works fine with the latest kde and openoffice. Remarkable.
A replacement hard drive is not possible.
My question is about how long the stick will last. It looks as if the limit is around 10 000 writes. How long is that at eg. 24/7 for opensuse?
I don't know, but two things you should do as soon as possible to maximize the time is to turn off all logging, and put /tmp and /var/tmp on ram disks With that not writing to the drive, I can imagine it takes quite a while to get to 10K writes Anders -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Saturday 29 Jan 2011 20:03:39 Anders Johansson wrote:
On Saturday 29 January 2011 19:42:04 lynn wrote:
I have a 16GB usb stick running 11.3 on my laptop after the hard drive failed. It works fine with the latest kde and openoffice. Remarkable.
A replacement hard drive is not possible.
My question is about how long the stick will last. It looks as if the limit is around 10 000 writes. How long is that at eg. 24/7 for opensuse?
I don't know, but two things you should do as soon as possible to maximize the time is to turn off all logging, and put /tmp and /var/tmp on ram disks
With that not writing to the drive, I can imagine it takes quite a while to get to 10K writes
Anders
Is there anything I can do easily to turn off logging? Next, to look into the ram disks. My /etc/fstab looks like this: /dev/disk/by-id/usb-_USB_DISK_2.0_078A0DB1005E-0:0-part1 swap swap defaults 0 0 /dev/disk/by-id/usb-_USB_DISK_2.0_078A0DB1005E-0:0-part2 / ext4 acl,user_xattr 1 1 proc /proc proc defaults 0 0 sysfs /sys sysfs noauto 0 0 debugfs /sys/kernel/debug debugfs noauto 0 0 usbfs /proc/bus/usb usbfs noauto 0 0 devpts /dev/pts devpts mode=0620,gid=5 0 0 I can't see how to get /tmp out of the stick to ram. Thanks L x -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Saturday 29 January 2011 19:42:04 lynn wrote:
I have a 16GB usb stick running 11.3 on my laptop after the hard drive failed. It works fine with the latest kde and openoffice. Remarkable.
A replacement hard drive is not possible.
My question is about how long the stick will last. It looks as if the limit is around 10 000 writes. How long is that at eg. 24/7 for opensuse?
Oh, in addition you probably want to mount all file systems with the noatime mount option, otherwise every disk access will involved a write Anders -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Oh, in addition you probably want to mount all file systems with the noatime mount option, otherwise every disk access will involved a write
Anders
I added noatime to /etc/fstab using joe as follows: /dev/disk/by-id/usb-_USB_DISK_2.0_078A0DB1005E-0:0-part1 swap swap /defaults,noatime 0 0 /dev/disk/by-id/usb-_USB_DISK_2.0_078A0DB1005E-0:0-part2 / ext4 /acl,user_xattr,noatime 1 1 I prayed and rebooted. The stick now shows less activity and I can scroll through documents without flicker. Gracias Thanks. L x -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Sat, Jan 29, 2011 at 1:42 PM, lynn <lynn@steve-ss.com> wrote:
I have a 16GB usb stick running 11.3 on my laptop after the hard drive failed. It works fine with the latest kde and openoffice. Remarkable.
A replacement hard drive is not possible.
My question is about how long the stick will last. It looks as if the limit is around 10 000 writes. How long is that at eg. 24/7 for opensuse?
L x
Lynn, That's 10,000 writes per Erase Block (EB). Anything modern has wear-leveling as an attempt to keep the number of writes per block relatively even over the full set. A EB is normally 128 KB, so you have 8/meg or 8000/GB, or about 128,000 on your device. That means your good for 1.3 billion writes if you keep the writes fairly level. That's not that hard to do because everytime you write to a EB, the "old" EB is moved to the spare stack and a new EB is allocated from the spare stack. (That's done internal to the drive). The key thing is to read/write every EB several times a year thus ensuring all of them participate in the wear leveling process. The only small trouble is I don't know of a tool to do that, but if it doesn't exist it would be relatively easy to write. If it were me, I'd want to see it as a grub option. ie. Boot linux, or flash drive refresh. Thoughts from anyone else? Existing tools to do this? Greg -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (3)
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Anders Johansson -
Greg Freemyer -
lynn