Re: [Hampshire] Advice please: disk bottle neck

2013-05-23 Thread Michael-John Turner
On Tue, May 14, 2013 at 07:33:25PM +0100, Peter Salisbury wrote: Thanks for the warning: what are the symptoms of failure do you know? Unfortunately SSDs typically suffer catastrophic failure, unlike traditional spinning disks which hint at impending failure through ever increasing SMART

Re: [Hampshire] Advice please: disk bottle neck

2013-05-14 Thread Martin N
Hello, At 22:14 13/05/2013, you wrote: Hi everyone, Just to resurrect this thread and let you know what happened. I tried rsyncing the contents of my system partition to a new partition on the same disk and surprisingly that gave a significant speed-up, around 10-20% at a guess. This is with

Re: [Hampshire] Advice please: disk bottle neck

2013-05-14 Thread Peter Salisbury
Thanks for the warning: what are the symptoms of failure do you know? ATB, Peter On 14 May 2013 16:57, Martin N marti...@bluebottle.com wrote: Hello, At 22:14 13/05/2013, you wrote: Hi everyone, Just to resurrect this thread and let you know what happened. I tried rsyncing the

Re: [Hampshire] Advice please: disk bottle neck

2013-03-14 Thread Michael Pavling
On 13 March 2013 21:57, Paul Stimpson p...@stimpsonfamily.co.uk wrote: Maybe a good cheap quiet boot device for an Openelec media player though? (assuming the media files are on a server somewhere else in the house...) An OpenElec machine will keep its database and all the downloaded

Re: [Hampshire] Advice please: disk bottle neck

2013-03-14 Thread Peter Salisbury
Well I've been looking at iotop when things are lagging and there isn't really anything surprising going on. I do have a couple of things causing a fairly constant low level of disk activity (around 1% iowait) which are java (for Wuala cloud storage) and jbd2 (the ext4 filing system house keeping

Re: [Hampshire] Advice please: disk bottle neck

2013-03-13 Thread Peter Salisbury
Thank for all your comments. I've tried the CF card SSD and it's no better. It gives an hdparm -t figure of about 20M compared with 50M for my internal drive so predictably it takes longer to start up, but I'd hoped that faster random access might give an overall improvement. Sadly it's actually

Re: [Hampshire] Advice please: disk bottle neck

2013-03-13 Thread Michael Pavling
On 13 March 2013 10:19, Peter Salisbury peterthevi...@users.sourceforge.net wrote: Thank for all your comments. I've tried the CF card SSD and it's no better. It gives an hdparm -t figure of about 20M compared with 50M for my internal drive so predictably it takes longer to start up, but I'd

Re: [Hampshire] Advice please: disk bottle neck

2013-03-13 Thread Paul Stimpson
Hi, Michael Pavling pavl...@gmail.com wrote: Maybe a good cheap quiet boot device for an Openelec media player though? (assuming the media files are on a server somewhere else in the house...) An OpenElec machine will keep its database and all the downloaded movie and album art on the

Re: [Hampshire] Advice please: disk bottle neck

2013-03-08 Thread Vic
It's very slow to do some things (e.g. shut down chrome or the Gimp) and the xfce disk monitor shows the disk as 100% 'busy' but hardly shifting any data. It's worth checking that this isn't retried I/O; first listen to the disk for any repetitive clicking. Modern disks are rather difficult

Re: [Hampshire] Advice please: disk bottle neck

2013-03-08 Thread Alan Pope
On 07/03/13 22:44, Peter Salisbury wrote: PS I have a USB adapter on order from China for a 32Gig UDMA CF card I have. Thought I might try it as an SSD! I put a real SSD in my Revo. Well, I put an SSD in basically every machine I own :) It makes a tremendous difference. Cheers, -- Alan

Re: [Hampshire] Advice please: disk bottle neck

2013-03-08 Thread Paul Stimpson
Alan Pope alan.p...@canonical.com wrote: On 07/03/13 22:44, Peter Salisbury wrote: PS I have a USB adapter on order from China for a 32Gig UDMA CF card I have. Thought I might try it as an SSD! I wouldn't be surprised if this combination didn't perform especially well or speak for the

[Hampshire] Advice please: disk bottle neck

2013-03-07 Thread Peter Salisbury
Hi, ** DETAILS I use an Acer Aspire Revo R3700 for my main PC (dual core 1.8Gig, 2Gig memory, WD3200BEVT 320Gig SATA HDD) I'm running xubuntu 12.10 at the moment. It's very slow to do some things (e.g. shut down chrome or the Gimp) and the xfce disk monitor shows the disk as 100% 'busy' but

Re: [Hampshire] Advice please: disk bottle neck

2013-03-07 Thread Keith Edmunds
On Thu, 7 Mar 2013 22:44:58 +, peterthevi...@users.sourceforge.net said: Anything I can try to speed things up or learn more about what's going on? Run iotop (you may need to install it first) to see which processes are causing disk activity. -- Please post to: