Re: [SLUG] Network Real-Time Hot Filesystem Replication?
Crossfire wrote: I've just spent some time quickly researching this to no real satisfaction. What I'm looking for is a way to do real-time hot-replication of a whole filesystem or filesystem tree over 2 nodes (and strictly 2 nodes) without STOMITH[1]. The scenario is I have two identical systems with local (software) RAID1. They will be tethered onto their internet feed via ethernet, and can optionally be tethered to each other via Gig. I want to be able to set it up so /home (and maybe other filesystems) are replicated from one to the other, in both directions, in real time so they can run in an all-hot redundant cluster. The environment should be mostly read-oriented, so I can live with write-latent solutions as long as they handle the race/collision gracefully (preferably by actually detecting and reporting it if they can't avoid it). I've had some success with Software iSCSI targets on Linux to date. I'm currently using software iSCSI over Gigabit Ethernet to back a VMware ESX cluster[0]. Software iSCSI targets (I have experience only with tgtd - the only one that seemed current) present a Linux block device as an iSCSI target over the network. I present an LVM logical volume. One could conceive of an eventuality where you made both machines iSCSI targets and initiators and ran RAID1 over the local and remote iSCSI targets[1]. I have no idea what sort of (terrible) performance you might get out of this sort of setup, but it would meet your requirements, and with enough RAM for read-caching in each node, it might not be too bad. You would need that Gigabit cross-connect. There are large warnings in the scsi_tgt code about using it in production, however. I suspect this problem space isn't addressed terribly often because, well, (1) it's Hard, (2) most people who care about this stuff buy shared storage (check ebay), (3) It's even Harder once you start talking file systems that do this[2]. Cheers, Matt 0. I can post my recipe for the target bits, if anyone cares. 1. With a global filesystem, of course. 2. Ceph, which Robert Collins suggested above, is a really good example of a brilliantly designed distributed file system (much better than MogileFS, which is more an on-disk hash table with quirks), but I have my doubts about it's suitability for production systems (though I hope it gets there). -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] OpenSuse 10.3 and NTFS
Hi all, I hope that someone can help me. I am using OpenSuse 10.3 and I can not view my Windows XP Pro file system in OpenSuse and I have made the modifications in the fstab file. Windows is installed on my first SATA hard disk drive which has an NTFS file system. I have attached my fstab file for you to look at so you can tell me where I am going wrong. Looking forward to hearing from you. Regards, Lee --- South Africas premier free email service - www.webmail.co.za -- For super low premiums, click here http://www.webmail.co.za/dd.pwm fstab Description: Binary data -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] OpenSuse 10.3 and NTFS
Hi all, I hope that someone can help me. I am using OpenSuse 10.3 and I can not view my Windows XP Pro file system in OpenSuse and I have made the modifications in the fstab file. Windows is installed on my first SATA hard disk drive which has an NTFS file system. I have attached my fstab file for you to look at so you can tell me where I am going wrong. Looking forward to hearing from you. Regards, Lee --- South Africas premier free email service - www.webmail.co.za -- For super low premiums, click here http://www.webmail.co.za/dd.pwm fstab Description: Binary data -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Content-Disposition: attachment; filename=
On 08/04/2008, at 3:17 PM, Peter Rundle wrote: If however, the end-user has the adobe acroread "plugin" in either FF or IE, then the filename is lost and the acroread offers to save the file as the url (createPdf.php in this case). Does anyone know if this can be "got around"? You could try as a dirty hack, linking to creatPdf.php? somethingdistinguishable.pdf don't know if it works, though. There's probably a right way to do it, i just don't know what it is. -- Michael Chesterton http://chesterton.id.au/blog/ http://barrang.com.au/ -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] OpenSuse 10.3 and NTFS
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, Just a thought: If the remmed out statement was created by the SuSE install you could try removing the # and see if that helps. Also check that you have a /windows/C dorectory for it to mount on. Heracles [EMAIL PROTECTED] wrote: | Hi all, | | I hope that someone can help me. | | I am using OpenSuse 10.3 and I can not view my Windows XP Pro file system | in OpenSuse and I have made the modifications in the fstab file. | | Windows is installed on my first SATA hard disk drive which has an NTFS | file system. | | I have attached my fstab file for you to look at so you can tell me where | I am going wrong. | | Looking forward to hearing from you. | | Regards, | Lee | | | --- | South Africas premier free email service - www.webmail.co.za | -- | For super low premiums, click here http://www.webmail.co.za/dd.pwm | -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFH+/cWybPcBAs9CE8RAnwIAJ9S9hjlfu4vDMyn30aT9CWkeVpVygCgnZE3 MN0dNziUW5zbHkedkYVw29U= =/G/1 -END PGP SIGNATURE- -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Debian question
No, I'm not being converted (shaddup David!) I've been, erm, "asked" to work on a little embedded box that $POE is trialling for a POS graphical display terminal. Said device runs Debian - and has issues with running a graphics mode higher than 1024x768. Naturally, $POE want it at 1280x720 (widescreen 16:9 ratio) It's running a bastardised/modified Debian Etch, as far as I can tell. Now, for all you Debian lovers out there. 1) Is Etch recent, or behind the times? The box is from HP - model available if required. it runs an ATI embedded card - shared video graphics RAM with the motherboard, I believe 2) Is this mode even valid? 3) Anyone know the magic to get this working? TIA. DaZZa -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Debian question
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 1. Etch is recent. 2. Running the proprietary drivers you can get widescreen with ATI cards but embedded cards can be a problem due to the shared memory (usually 64MB). 3. You can get the drivers and have them set up for you using a little program created by Alberto Milone called 'envy'. HTH Heracles DaZZa wrote: | No, I'm not being converted (shaddup David!) | | I've been, erm, "asked" to work on a little embedded box that $POE is | trialling for a POS graphical display terminal. | | Said device runs Debian - and has issues with running a graphics mode | higher than 1024x768. | | Naturally, $POE want it at 1280x720 (widescreen 16:9 ratio) | | It's running a bastardised/modified Debian Etch, as far as I can tell. | | Now, for all you Debian lovers out there. | | 1) Is Etch recent, or behind the times? The box is from HP - model | available if required. it runs an ATI embedded card - shared video | graphics RAM with the motherboard, I believe | 2) Is this mode even valid? | 3) Anyone know the magic to get this working? | | TIA. | | DaZZa -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFH+/7SybPcBAs9CE8RAjtmAJwOHbFTpA2Of/vClbvezhCB+WSlogCeL4ns CjSn2yxab+8xMRDFMKoFv5M= =N6W1 -END PGP SIGNATURE- -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Network Real-Time Hot Filesystem Replication?
I don't know whether it would suit you at all, but I'll mention http://allmydata.org/trac/tahoe for the simple reason it looks interesting and it only just announced version 1.0 RC's mention of Ceph jogged my memory on this. Matt -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Debian question
On Wed, 2008-04-09 at 09:25 +1000, Heracles wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > 1. Etch is recent. > 2. Running the proprietary drivers you can get widescreen with ATI cards > but embedded cards can be a problem due to the shared memory (usually 64MB). > 3. You can get the drivers and have them set up for you using a little > program created by Alberto Milone called 'envy'. > I've also had good luck with "envy" Dazz.. it's time you joined the rest of the known world ;-) > HTH > Heracles > > DaZZa wrote: > | No, I'm not being converted (shaddup David!) > | > | I've been, erm, "asked" to work on a little embedded box that $POE is > | trialling for a POS graphical display terminal. > | > | Said device runs Debian - and has issues with running a graphics mode > | higher than 1024x768. > | > | Naturally, $POE want it at 1280x720 (widescreen 16:9 ratio) > | > | It's running a bastardised/modified Debian Etch, as far as I can tell. > | > | Now, for all you Debian lovers out there. > | > | 1) Is Etch recent, or behind the times? The box is from HP - model > | available if required. it runs an ATI embedded card - shared video > | graphics RAM with the motherboard, I believe > | 2) Is this mode even valid? > | 3) Anyone know the magic to get this working? > | > | TIA. > | > | DaZZa > -BEGIN PGP SIGNATURE- > Version: GnuPG v1.4.6 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFH+/7SybPcBAs9CE8RAjtmAJwOHbFTpA2Of/vClbvezhCB+WSlogCeL4ns > CjSn2yxab+8xMRDFMKoFv5M= > =N6W1 > -END PGP SIGNATURE- -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Debian question
| I've been, erm, "asked" to work on a little embedded box that $POE is | trialling for a POS graphical display terminal. | | Said device runs Debian - and has issues with running a graphics mode | higher than 1024x768. | | Naturally, $POE want it at 1280x720 (widescreen 16:9 ratio) | | It's running a bastardised/modified Debian Etch, as far as I can tell. | | Now, for all you Debian lovers out there. | | 1) Is Etch recent, or behind the times? The box is from HP - model | available if required. it runs an ATI embedded card - shared video | graphics RAM with the motherboard, I believe | 2) Is this mode even valid? | 3) Anyone know the magic to get this working? | etch has problems with wide screen until you update X, even for the latest etch revision - still needs apt-get dselect-update or aptitude upgrade Dean -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Drupal Asia Pacific to be held in Sydney, May 2008
I only just found out about this and haven't seen any mention here: http://drupalapc.org/ May 18th - 22nd 2008. It seems to be a development and community conference for Drupal, held in conjunction with Open CeBIT. -Mary -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] OpenSuse 10.3 and NTFS
It works manually, right? i.e. Have you tried "ntfs-3g /dev/sda1 /windows/C" as root? David On Wed, Apr 9, 2008 at 7:07 AM, <[EMAIL PROTECTED]> wrote: > Hi all, > > I hope that someone can help me. > > I am using OpenSuse 10.3 and I can not view my Windows XP Pro file system > in OpenSuse and I have made the modifications in the fstab file. > > Windows is installed on my first SATA hard disk drive which has an NTFS > file system. > > I have attached my fstab file for you to look at so you can tell me where > I am going wrong. > > Looking forward to hearing from you. > > Regards, > Lee > > > --- > South Africas premier free email service - www.webmail.co.za > -- > For super low premiums, click here http://www.webmail.co.za/dd.pwm > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html