Re: [Dorset] Moving Home partition - Re DLUG meet
Simon O'Riordan wrote: All flash drives die eventually; the individual memory cells are worm out after about 100,000 operations each, and so over time the amount of physical memory in the drive dies off. Having said which, I don't know which file system is hardest on the chips; I have heard that Vista wears out hard drives as it can be very busy. At Sun we had a bug raised in the early days of ZFS where folks were using USB keys to hold ZFS pools, and they were burning out after only a few days of heavy use because the filesystem was updating metadata in the same locations after every I/O or group of I/Os. So, the filesystem now moves metadata (copy on write) rather than updating it in place. It fixed the problem. Presumably any FS that holds volatile information such as file access time in a relatively static location is likely to do the same thing to it's hardware. That said, I would have guessed that a decent SSD will be able to retire/reallocate flaky memory locations before they fail completely. cheers, --justin -- Next meeting: Bournemouth, Wednesday 2009-12-02 20:00 Dorset LUG: http://dorset.lug.org.uk/ Chat: http://www.mibbit.com/?server=irc.blitzed.orgchannel=%23dorset List info: https://mailman.lug.org.uk/mailman/listinfo/dorset
[Dorset] OT: rack space needed..
Hi, I've been given a rather nice rackmount server (a Sun T2000) which is just a bit too noisy for the spare room. Does anyone know of a friendly local datacentre or rackspace provider that would allow me to host it there for something approaching peanuts per month? It's either that or it goes on eBay. cheers, --justin -- Next meeting: Dorchester, Tuesday 2010-01-12 20:00 ** New date ** Dorset LUG: http://dorset.lug.org.uk/ Chat: http://www.mibbit.com/?server=irc.blitzed.orgchannel=%23dorset List info: https://mailman.lug.org.uk/mailman/listinfo/dorset
Re: [Dorset] OT: rack space needed..
There's one in North Wales (not exactly local) who'll host it for £20/month. yep.. not exactly a 10 minute drive if I need to stick a dvd in the slot. After that the price goes up and up - we recently had a quote for over £350 per month for a 1U colo slot(!). Wow... at those prices it's more likely you'll go out of business because of overheads rather than an outage... Cheers for the reply anyway :o) Looks like it's going on ebay. --justin -- Next meeting: Dorchester, Tuesday 2010-01-12 20:00 ** New date ** Dorset LUG: http://dorset.lug.org.uk/ Chat: http://www.mibbit.com/?server=irc.blitzed.orgchannel=%23dorset List info: https://mailman.lug.org.uk/mailman/listinfo/dorset
Re: [Dorset] 19 industrial computer racks, free.
On 13/09/2010 12:04, Philip Vossler wrote: We have two 19 racks to give away.are they of use to anyone on the list? how tall are they? -- Next meeting: Bournemouth? TBD, Wednesday 2010-10-06 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://bit.ly/4sACa
Re: [Dorset] 10 Things I'd change in linux
(1) Create a way to share files between machines on a LAN really easily that doesn't hang the system if the network goes away. SAMBA is too complex. sshfs can hang a whole machine if a network goes down. NFS soft mounts? cheers, --justin -- Next meeting: Crown Hotel, Blandford Forum, Tuesday 2010-11-02 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] 10 Things I'd change in linux
On 03/11/2010 12:41, John Carlyle-Clarke wrote: On 03/11/10 11:04, Justin Stringfellow wrote: (1) Create a way to share files between machines on a LAN really easily that doesn't hang the system if the network goes away. SAMBA is too complex. sshfs can hang a whole machine if a network goes down. NFS soft mounts? Yes, CIFS has a similar option. It's part of a solution, but it doesn't exactly solve the whole problem. I'm sitting at my desk right now, using a desktop. There's a laptop next to it which has a file on it that I want to use. I could scp it (but then I end up with two copies), or I could set up samba sharing on or other, or I could set up an NFS server on one and mount it. I'm on a DHCP network without DDNS which doesn't help. Both lack the convenience of just saying I want something from that machine there and using Avahi or DNS to figure out how to get to it, setting up an ad-hoc pairing and trust, and sharing files in a really simple drag drop way (or equally from a shell with full tab-completion and familiar tools (cp, ls, mv) rather than smbclient or ftp. All the required bits are already there, they just need putting together in the right way :) sounds like you need the automounter, then! I dunno if it's the same on linux, but on solaris, the default automount configuration allows you to browse any other nfs server on your network via /net/hostname/nfs_share without prior configuration. cheers, --justin -- Next meeting: Crown Hotel, Blandford Forum, Tuesday 2010-11-02 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] 10 Things I'd change in linux
Re: OpenOffice, I'm curious to know what will happen to it now that it's been bought by Oracle. I've heard that it's going to be forked. Anybody knows about that? See: http://www.theregister.co.uk/2010/09/28/openoffice_independence_from_oracle/ Open sourcers have seized control of the OpenOffice project and product and declared their independence from database giant Oracle. The OpenOffice.org Project has unveiled a major restructuring that separates itself from Oracle and that takes responsibility for OpenOffice away from a single company. Oracle had been OpenOffice's principal contributor - a role it inherited thanks to its acquisition of the well meaning but slow-witted Sun Microsystems earlier this year. -- Next meeting: Crown Hotel, Blandford Forum, Tuesday 2010-11-02 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] New DVD writing error
On 14/06/2012 20:36, Peter Merchant wrote: WRITE@LBA=240h failed with SK=5h/INVALID ADDRESS FOR WRITE]: Invalid argument Check out the following thread: http://ubuntuforums.org/showthread.php?t=1317448 Other than that, try a live CD to see if it makes a difference (e.g. knoppix). Good luck burning that so you can boot off of it, though :) (from the link above) --- I solved! (it works at least for me) You must verify that you DVD-writer have pata_atiixp driver for his scsi channel: Code: $ dmesg | grep scsi[0-5]\ : scsi0 : ahci scsi1 : ahci scsi2 : ahci scsi3 : ahci scsi4 : pata_atiixp scsi5 : pata_atiixp 4th and 5th chanell are controlled in pata_atiixp mode then I plugged the SATA cable on 5th SATA connector on my mainboard and after reboot: Code: $ dmesg | grep scsi | grep GH22NS50 scsi 5:0:1:0: CD-ROMHL-DT-ST DVDRAM GH22NS50 TN02 PQ: 0 ANSI: 5 well my DVDRAM is on 5th SATA channel, now now I can burn DVDs! Be sure that in your BIOS you have IDE (not AHCI) in SATA CONFIGURATION after boot the kernel sets automatically on AHCI mode 4 (over 6) channels to AHCI I noticed that on Intel-based mobo, scsi channels are always pata_atiixp nb. AHCI is better than PATA_ATIIXP for SATA hard disks I don't know how to select AHCI/PATA_PIIX mode in grub.conf kernel line -- Next meeting: Bournemouth, Tuesday 2012-06-12 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] ext2-3-4 on Win
option is a netboot. Which would work, if the network card supported it. check out ipxe.org, you can get a bootable cd image there which will then pxe boot your box for you. -- Next meeting: Bournemouth, Tuesday 2012-08-07 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] Partition folder capacity
Tuning maxusers on Solaris is a bad idea, not sure about Linux. It's an ancient tunable whose meaning has long since ceased to control the max number of interactive users and it serves more as a master control knob for sizing the whole system. The impact of fiddling with it is potentially large. Much better to find the more specific tunable for the thing you want to change. cheers, --justin p.lane p.l...@lectrics.co.uk wrote: On 07/05/2013 18:46, p.lane wrote: On 07/05/2013 15:42, C A Wills wrote: Hi Bob Thanks for the info but using df -i only lists info of the laptop I'm using although the remote partition is 'mounted' on the desktop and I can 'see' the files on it in Nautilus. The only partitions listed are sda2 (root) sda6 (home). *C A Wills* /Powered by Linux Open Source Software/ On 07/05/13 12:39, Bob Dunlop wrote: $ df -i From my Solaris admin I remember having to increase the number of inodes on an expanded filesystem on an EMC array. /etc/bin/nfstsat the size of the inode cache can be increased as it is a quota system tied to the 'maxuser' parameter. increase the 'maxusers' parameter in the /etc/system file. By default, it is set to the amount (number) of RAM present. set maxusers = 1024 increasing this parameter increases the number of available inodes. A reboot is required. The system will recompute the size of the inode cache. Not sure how this translates to Linux, but is worth a search. bon chance. btw...jfs2 increases inode allocation on the fly..allegedly. -- P.Lane CEO Lectrics Ltd Poole Dorset -- Next meeting: Bournemouth, Tuesday, 2013-05-07 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue -- Next meeting: Bournemouth, Tuesday, 2013-05-07 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] Partition folder capacity
Tuning the maxusers as a means of increasing the available inodes was taught by Sun in their 2.x Network Admin course and was included in the NFS Server Performance and Tuning guide. So as a recommended method, I regard it as having been safe, useful and effective. Tuning maxusers is a very old fashioned approach to system tuning; are you sure you weren't told to do this in relation to SunOS4.x, which was the earlier Sun UNIX OS, and a BSD derivative? I believe you absolutely do tune maxusers there, but not Solaris 2.x. Typically you would tune more specifically - e.g. ncsize for the DNLC, nrnodes for NFS inode count, etc. Turning the wick up on maxusers will change sizing for the whole system and could easily result in negative performance gains. cheers --justin -- Next meeting: Bournemouth, Tuesday, 2013-06-04 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] OT: Reading and Copying UFS Formatted Hard Disks
Terry, I've got a spare Ultra 5 you can borrow... unfortunately I'm in Belgium until Friday. You can get round the idprom issue with some gnarly forth mkp OpenBoot Prom commands: http://www.squirrel.com/squirrel/sun-nvram-hostid.faq The Ultra 5 is a sun4u architecture machine, so follow those instructions. I'm assuming this is Solaris, since only a foaming-at-the-mouth nutter would be running Linux on SPARC Bear in mind that UFS on SPARC will be big endian, whereas on x86/x64 it will be little endian. So you won't be able to install Solaris on a spare PC and mount the filesystem there. It needs to be SPARC, with PATA. Which means a Ultra 5/10 or, er, Blade 100/150, I can't think of any others offhand. Why not fetch the data you need from your backup tapes? :) cheers, --justin From: d-...@hadrian-way.co.uk d-...@hadrian-way.co.uk To: Dorset Linux User Group dorset@mailman.lug.org.uk Sent: Monday, 2 September 2013, 8:15 Subject: [Dorset] OT: Reading and Copying UFS Formatted Hard Disks Hi, Anyone have any experience of mounting disks formatted as UFS? I only need read capability, so I can get some data off the disk, but our efforts to mount the thing were defeated here on Friday. We have a Sparc Ultra 5 box here which has fallen foul of the 'IDPROM contents are invalid' fault (duff battery in the NVRAM) and the box isn't ours so I'm going to have to send it away for repair. Terry Coles -- Next meeting: Bournemouth, Tuesday, 2013-08-06 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue -- Next meeting: Bournemouth, Tuesday, 2013-08-06 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue
