From bob at ucc.gu.uwa.edu.au Thu Oct 7 22:12:13 2010 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Thu, 7 Oct 2010 22:12:13 +0800 (WST) Subject: [tech] SAN In-Reply-To: References: Message-ID: On Tue, 20 Jul 2010, Bob Adamson wrote: > Hi All, > > If you haven't been in the clubroom over the last few months, you won't have > noticed the assortment of SAN parts that are dominating the place. I think > it's time we did something with them. > > We have: > 2 shelves of 300GB disks > 2 shelves of 146GB disks (one of which is the SAN controller) > 1 shelf of 73GB disks > 2 EMC DS-4700M fibre channel switches > 1 UPS which is on the way out > > I think we could/should use the extra storage for better webcam footage > storage, but the disks are pretty heat intensive. My proposal is that we use > 1 switch, the controller and the 2 300GB shelves to make a miniature SAN. > This could also potentially replace the two shelves that are currently > attached to musundo. > So after many, many hours spent working on the SAN (and equivalent amounts of head scratching) I have finally got it set up. Thanks Nick and Frenchie for your help and advice with it. UCC now has a couple of TB to play with, with redundant power supplies, redundant 2Gbps fibre connections with multipath support, and redundant storage processors. The storage processors and FC switch are battery backed, so we can take advantage of the 2GB write cache. The UPS, which is actually an SPS, has got all new batteries in it, so we can trust it. All in all, a much more reliable setup than ucc has ever had, and fairly fast. I only had enough rack space to mount the 2 shelves of 300GB disks and the controller shelf, so we have a couple of spare shelves, power supplies and disks. All that really remains is to document it and connect it to a machine where it will be more useful than on my colo box. Now. We need to work out the best way to make use of it. Let's mirror the internet... :P [BOB] From maset at ucc.asn.au Thu Oct 7 23:15:42 2010 From: maset at ucc.asn.au (Anil Sharma) Date: Thu, 7 Oct 2010 23:15:42 +0800 Subject: [tech] SAN In-Reply-To: References: Message-ID: Well done Bob, more space for me to store my data. In all seriousness, a job well done. Good work. Cheers, Anil. From bob at ucc.gu.uwa.edu.au Wed Oct 13 19:06:46 2010 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Wed, 13 Oct 2010 19:06:46 +0800 (WST) Subject: [tech] failing disk on maraena Message-ID: Hi All, I noticed one of the boot disks on maraena was throwing errors so Frenchie and I took the liberty of switching it out with a spare before it the raid failed. No need to panic if you got the emails...though me near a raid setup may be worth worrying about... <3 hotswap disks Bob From danielax at gmail.com Thu Oct 14 11:29:03 2010 From: danielax at gmail.com (Daniel Axtens) Date: Thu, 14 Oct 2010 11:29:03 +0800 Subject: [tech] Weird napoli locking(?) issue Message-ID: Hi all, I'm having issues with re-saving files on napoli - an initial save will succeed, but any subsequent attempts to modify the file fail. Steps to reproduce: - Open a file, say report.tex with TeXShop (the problem also occurs with OpenOffice) - make a change to the file and save it. The save should succeed. - make another change to the file and attempt to save it. The save will fail with a totally uninformative information message. Other information: - ls -la@ report.tex: -rw-r--r--@ 1 dja wheel 4340 14 Oct 11:18 report.tex com.apple.FinderInfo 32 I don't really know how to pull out the contents of FinderInfo. I suspect it's something to do with the network, but IANA mac expert. -- d From ucc at cueballcentral.com Thu Oct 14 12:14:51 2010 From: ucc at cueballcentral.com (Mark Glossop) Date: Thu, 14 Oct 2010 12:14:51 +0800 Subject: [tech] Weird napoli locking(?) issue In-Reply-To: Message-ID: On 14/10/10 11:29, somebody called Daniel Axtens (danielax at gmail.com) wrote this: > Hi all, > > I'm having issues with re-saving files on napoli - an initial save > will succeed, but any subsequent attempts to modify the file fail. > > Steps to reproduce: > - Open a file, say report.tex with TeXShop (the problem also occurs > with OpenOffice) > - make a change to the file and save it. The save should succeed. > - make another change to the file and attempt to save it. The save > will fail with a totally uninformative information message. > > Other information: > - ls -la@ report.tex: > > -rw-r--r--@ 1 dja wheel 4340 14 Oct 11:18 report.tex > com.apple.FinderInfo 32 > > I don't really know how to pull out the contents of FinderInfo. > > I suspect it's something to do with the network, but IANA mac expert. > > -- d Glib answer? com.apple.FinderInfo is filesystem metadata in [HFS+ extended attributes] for the Finder :-D More concrete answer? It contains information that the Finder can use. Just running FSMegaInfo [1] on ~/.DS_Store on my machine gives me: $ FSMegaInfo -v getxattr .DS_Store com.apple.FinderInfo getxattr .DS_Store com.apple.FinderInfo data: fileType = 0x00000000 ('????') fileCreator = 0x00000000 ('????') finderFlags = 0x4000 location.v = 0 location.h = 0 reservedField = 0 reserved1[1] = 0 reserved1[2] = 0 reserved1[3] = 0 reserved1[4] = 0 extendedFinderFlags = 0x0000 reserved2 = 0 putAwayFolderID = 0 I have no idea if that helps with the underlying issue however - hopefully it's a starting point, and it may spur further discussion...no time for more comments right now; sorry :-( [1] GIYF - developer.apple.com should have the source. Cheers, M. -- Mark Glossop E: ucc at cueballcentral.com | W: http://cueballcentral.com M: +61 [0]406 351 336 | TW: @Cueball_AU From danielax at gmail.com Fri Oct 15 00:50:00 2010 From: danielax at gmail.com (Daniel Axtens) Date: Fri, 15 Oct 2010 00:50:00 +0800 Subject: [tech] Weird napoli locking(?) issue In-Reply-To: References: Message-ID: I should clarify that I'm saving to a subdirectory of my home directory, which is network mounted. -- d On 14 October 2010 11:29, Daniel Axtens wrote: > Hi all, > > I'm having issues with re-saving files on napoli - an initial save > will succeed, but any subsequent attempts to modify the file fail. > > Steps to reproduce: > ?- Open a file, say report.tex with TeXShop (the problem also occurs > with OpenOffice) > ?- make a change to the file and save it. The save should succeed. > ?- make another change to the file and attempt to save it. The save > will fail with a totally uninformative information message. > > Other information: > ?- ls -la@ report.tex: > > -rw-r--r--@ 1 dja ?wheel ?4340 14 Oct 11:18 report.tex > ? ? ? ?com.apple.FinderInfo ? ? ?32 > > I don't really know how to pull out the contents of FinderInfo. > > I suspect it's something to do with the network, but IANA mac expert. > > -- d > From zanchey at ucc.gu.uwa.edu.au Fri Oct 15 01:14:39 2010 From: zanchey at ucc.gu.uwa.edu.au (David Adam) Date: Fri, 15 Oct 2010 01:14:39 +0800 (WST) Subject: [tech] Weird napoli locking(?) issue In-Reply-To: References: Message-ID: You could use something like ktrace(8) or Shark's System Trace to see what's going on? It doesn't really sound like a locking issue to me, but the combination of Linux NFS server and Mac OS NFS client does not inspire me. David Adam UCC Wheel Member zanchey@ On Fri, 15 Oct 2010, Daniel Axtens wrote: > I should clarify that I'm saving to a subdirectory of my home > directory, which is network mounted. > -- d > > On 14 October 2010 11:29, Daniel Axtens wrote: > > Hi all, > > > > I'm having issues with re-saving files on napoli - an initial save > > will succeed, but any subsequent attempts to modify the file fail. > > > > Steps to reproduce: > > ?- Open a file, say report.tex with TeXShop (the problem also occurs > > with OpenOffice) > > ?- make a change to the file and save it. The save should succeed. > > ?- make another change to the file and attempt to save it. The save > > will fail with a totally uninformative information message. > > > > Other information: > > ?- ls -la@ report.tex: > > > > -rw-r--r--@ 1 dja ?wheel ?4340 14 Oct 11:18 report.tex > > ? ? ? ?com.apple.FinderInfo ? ? ?32 > > > > I don't really know how to pull out the contents of FinderInfo. > > From danielax at gmail.com Fri Oct 15 11:45:53 2010 From: danielax at gmail.com (Daniel Axtens) Date: Fri, 15 Oct 2010 11:45:53 +0800 Subject: [tech] Weird napoli locking(?) issue In-Reply-To: References: Message-ID: FWIW, Trash also fails to empty because it is apparently perpetually being emptied. I will investigate it when I don't have an assignment due at 5 today, and 5 exams fast approaching. -- d From danielax at gmail.com Fri Oct 15 11:49:34 2010 From: danielax at gmail.com (Daniel Axtens) Date: Fri, 15 Oct 2010 11:49:34 +0800 Subject: [tech] Weird napoli locking(?) issue In-Reply-To: References: Message-ID: What I meant to say was: nothing can be moved to trash, nor can trash be opened: an error message saying that Trash is being emptied pops up. Trash also can't actually be emptied; that fails silently. Sorry for the double up, I'll endeavour to proofread better in the future. -d On 15 October 2010 11:45, Daniel Axtens wrote: > FWIW, Trash also fails to empty because it is apparently perpetually > being emptied. > > I will investigate it when I don't have an assignment due at 5 today, > and 5 exams fast approaching. > > -- d > From bob at ucc.gu.uwa.edu.au Wed Oct 20 17:28:47 2010 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Wed, 20 Oct 2010 17:28:47 +0800 (WST) Subject: [tech] SOE Message-ID: Hi, After trying (and becoming hooked on) LaTex, I would like to see it installed as a part of the Windows SOE. The program I've been using for it is MikTex - it's pretty user friendly and has plenty of features. Best of all, it's free! Anyone object to this? Got a better suggestion? Speak now, or forever hold your peace... Bob From scott at sjy.id.au Wed Oct 20 18:44:41 2010 From: scott at sjy.id.au (Scott Young) Date: Wed, 20 Oct 2010 18:44:41 +0800 Subject: [tech] SOE In-Reply-To: References: Message-ID: <-8577129288493557326@unknownmsgid> I would also suggest installing LyX, a decent free "WYSIWYM" (what you mean) editor. It's particularly useful for editing complex mathematical formulae, which can rapidly become difficult to manage with a text editor. [SJY] On 20/10/2010, at 5:28 PM, Bob Adamson wrote: > Hi, > > After trying (and becoming hooked on) LaTex, I would like to see it > installed as a part of the Windows SOE. The program I've been using for it > is MikTex - it's pretty user friendly and has plenty of features. Best of > all, it's free! Anyone object to this? Got a better suggestion? Speak now, > or forever hold your peace... > > Bob From whitel08 at student.uwa.edu.au Thu Oct 21 08:45:49 2010 From: whitel08 at student.uwa.edu.au (Frames) Date: Thu, 21 Oct 2010 08:45:49 +0800 Subject: [tech] SOE In-Reply-To: <-8577129288493557326@unknownmsgid> References: <-8577129288493557326@unknownmsgid> Message-ID: <4CBF8D3D.1020303@ucc.asn.au> I would like to second the suggestion of Lyx. I use it for uni all the time. One of its installers also installs MikTex. two birds with one stone. Frames [*OX} On 20/10/2010 6:44 PM, Scott Young wrote: > I would also suggest installing LyX, a decent free "WYSIWYM" (what you > mean) editor. It's particularly useful for editing complex > mathematical formulae, which can rapidly become difficult to manage > with a text editor. > > [SJY] > > On 20/10/2010, at 5:28 PM, Bob Adamson wrote: > >> Hi, >> >> After trying (and becoming hooked on) LaTex, I would like to see it >> installed as a part of the Windows SOE. The program I've been using for it >> is MikTex - it's pretty user friendly and has plenty of features. Best of >> all, it's free! Anyone object to this? Got a better suggestion? Speak now, >> or forever hold your peace... >> >> Bob From bob at ucc.gu.uwa.edu.au Fri Oct 29 17:50:25 2010 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Fri, 29 Oct 2010 17:50:25 +0800 (WST) Subject: [tech] New thinterm Message-ID: Hi all, In my post-assignment-week madness, I switched out Canevas for a newer thinterm donated by [FEL] earlier in the year. Caeruleus seemed like a nice name at the time, but given my newfound inability to spell (got 'address' wrong in the dhcp config), I'm not so sure anymore... Canevas will find a new home in the corridor, keeping the serial terminals company. Now we just have to figure out what's causing the virtual terminal issues, and the thinterms will be pretty useful (will be able to use shell, and rdp to maaxen). The current problem is that you only seem to have one choice - you can't CTRL+ALT to any other screen. Any suggestions? Bob Adamson UCC Treasurer |"Bureaucracy is a challenge to the be conquered with a righteous | |attitude, an intolerance for stupidity, and a bulldozer when necessary" | | ---Peter's Laws |