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Off-topic: SNAP Server mailing list
by eh＠dataconnection.com 21 Nov '05

21 Nov '05

> I have an out of maintenance SNAP server that's partly broken, and I > want to repair. > > Now, stop laughing. > > Obviously I'd rather I had a Netapp instead. > > I'm looking for a mailing list/experts on SNAP servers, but failing to > find any. Does anyone have any pointers? > > Edward.

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Off-topic: SNAP Server mailing list
by Edward Hibbert 21 Nov '05

21 Nov '05

I have an out of maintenance SNAP server that's partly broken, and I want to repair. Now, stop laughing. Obviously I'd rather I had a Netapp instead. I'm looking for a mailing list/experts on SNAP servers, but failing to find any. Does anyone have any pointers? Edward.

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Take the pill and enjoy great sex
by Hetty Yang 19 Nov '05

19 Nov '05

Large natural erection! http://unimplemented.waterbred.com/?spinsterxtvuysorerzsvtitle If you can count your money, you don't have a billion dollars. Few men have virtue to withstand the highest bidder. Fallacies do not cease to be fallacies because they become fashions. I can remember when the air was clean and sex was dirty. A cheerful mind is a vigorous mind. We shape our buildings and they shape us. From the still-vexed Bermoothes.

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Is anyone using IPSEC between a filer and Solaris 10 ?
by Steve Losen 17 Nov '05

17 Nov '05

If anyone has IPSEC working between a filer (I'm running 7.0.1R1) and Solaris 10, I would love to see your config. On Solaris: /etc/inet/ipsecinit.conf (config file for ipsecconf) /etc/inet/ike/conf (config file for in.iked) /etc/inet/secret/ike.preshared (hide your pre shared keys of course!) On the filer: /etc/psk.txt (hide pre shared keys!) Output of: ipsec policy show ipsec sa show Am I missing anything? I want to use the IPSEC AH protocol to verify the identity of some Solaris NFS clients in a lab with a physically insecure network. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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Block-Level Backup of Filer Volumes
by Ben Rockwood 15 Nov '05

15 Nov '05

I'm looking into various methods for tape backup of our filers. Due to the large number of files a file level backup would be significantly slower than a block-level backup method, however I'm not sure if one exists. I was hoping someone could clarify. NDMP utilizes dump, which is file-based so that doesn't solve the performance issues, and from what I can tell SnapVault is only for disk-to-disk backup, not tape. Even if I direct connect a tape robot to the filer I'd still be using dump and the throughput isn't being limited by the network capacity, so that doesn't help either. I'm hoping there is a block-level method I'm unaware of. NDMP in my tests has been dog slow and standard backups via NFS mount don't sound appealing. Suggestions are welcome. benr.

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(no subject)
by Nigel Burmeister 15 Nov '05

15 Nov '05

sunscribe

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RE: Block-Level Backup of Filer Volumes
by Palmer, Jason 15 Nov '05

15 Nov '05

John> There is a tool, which I just found out about, which lets you snapmirror/snapvault to a file, which can then be written to tape. It would be nicer if it could write to tape from the start, but that's just a detail. Do you have the name of this tool or a link to where we can get it ? Obviously it allows for the reverse to be done ? Recreate the snapmirror / snapvault data back in a volume from the file that was created ? Jason -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of John Stoffel Sent: 15 November 2005 13:44 To: Ben Rockwood Cc: toasters(a)mathworks.com Subject: Re: Block-Level Backup of Filer Volumes Ben> I'm looking into various methods for tape backup of our filers. Actually, you're looking for ways to restore your filers from a backup in a short amount of time. Now, the question is how do you get that data into a format which can be restored quickly? And at no (or little) extra budget I bet. :] Ben> Due to the large number of files a file level backup would be Ben> significantly slower than a block-level backup method, however I'm Ben> not sure if one exists. We currently do backups over NFS, we have a couple of file systems with 10-15 million files. Mostly small ones. And yes, they are poorly laid out and configured. But I can't change them either. Ben> I was hoping someone could clarify. Me too! It's a perennial issue, and not one that the major vendors adequately respond to in some ways. Ben> NDMP utilizes dump, which is file-based so that doesn't solve the Ben> performance issues, and from what I can tell SnapVault is only for Ben> disk-to-disk backup, not tape. There is a tool, which I just found out about, which lets you snapmirror/snapvault to a file, which can then be written to tape. It would be nicer if it could write to tape from the start, but that's just a detail. Anyway, the question I have for you is how do you restore your data? Are you looking for quick restores of random files? Are you looking for quick restores of large chunks of data? Do you have data split across volumes/qtrees, or is it more monolithic? I've found great performance gains by doing my backups against multiple qtrees at a time. This does require that you try to get the users to split up their data a bit more, and help out with the management if at all possible. Ben> Even if I direct connect a tape robot to the filer I'd still be Ben> using dump and the throughput isn't being limited by the network Ben> capacity, so that doesn't help either. I'm hoping there is a Ben> block-level method I'm unaware of. NDMP in my tests has been dog Ben> slow and standard backups via NFS mount don't sound appealing. Can you give more details about your problem space? Filer, disks, network, file system size and number of files, etc? Also try doing NDMP backups in parallel, either at the volume or qtree level. Legato (EMC) Networker can now do NDMP streams, with indexes of files, to disk volumes. This means you can run multiple parallel streams at the same time. Once they are done, you could then clone/stage them to tape either sequentially, or in parallel. I'm starting to really think that disk-to-disk-to-tape is the way to go, but the problem is that people see all that extra disk space sitting around and they try to fill it up. :-) Or ask why they can just have a hundred gigs or so for this new project, we'll cleanup when we're done, honest! John John Stoffel - Senior Staff Systems Administrator - System LSI Group Toshiba America Electronic Components, Inc. - http://www.toshiba.com/taec john.stoffel(a)taec.toshiba.com - 508-486-1087 ------ -------------------------------------------------------------------------------- The information contained herein is confidential and is intended solely for the addressee. Access by any other party is unauthorised without the express written permission of the sender. If you are not the intended recipient, please contact the sender either via the company switchboard on +44 (0)20 7623 8000, or via e-mail return. If you have received this e-mail in error or wish to read our e-mail disclaimer statement and monitoring policy, please refer to http://www.drkw.com/disc/email/ or contact the sender. 3167 --------------------------------------------------------------------------------

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RE: Block-Level Backup of Filer Volumes
by Holland, William L 15 Nov '05

15 Nov '05

We use Backup Express and it works fine. We SnapVault from our main filers to an R200 then NDMP backup to tape with Backup Express. -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:Jason.Palmer@drkw.com] Sent: Tuesday, November 15, 2005 8:29 AM To: 'Ben Rockwood'; toasters(a)mathworks.com Subject: RE: Block-Level Backup of Filer Volumes Netvault (Backbone) - Tested SMT sucessfully Backup Express (Syncsort) - Not tested by me yet but awaiting to eval These allow the backup of the volume using Snapmirror to tape (SMT) Back at the time I tested NetVault it was pretty basic, but I got the volume + block level snapshots sucessfully off to a Virtual Backup Library (Another nice feature) and then back from the virtual tape library onto another Filers volume intact. Not sure is either of these products have enhanced their block level capabilities since I looked at them last year. I would also be interested to see what others say and come back with Jason -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Ben Rockwood Sent: 15 November 2005 08:14 To: toasters(a)mathworks.com Subject: Block-Level Backup of Filer Volumes I'm looking into various methods for tape backup of our filers. Due to the large number of files a file level backup would be significantly slower than a block-level backup method, however I'm not sure if one exists. I was hoping someone could clarify. NDMP utilizes dump, which is file-based so that doesn't solve the performance issues, and from what I can tell SnapVault is only for disk-to-disk backup, not tape. Even if I direct connect a tape robot to the filer I'd still be using dump and the throughput isn't being limited by the network capacity, so that doesn't help either. I'm hoping there is a block-level method I'm unaware of. NDMP in my tests has been dog slow and standard backups via NFS mount don't sound appealing. Suggestions are welcome. benr. ---------------------------------------------------------------------------- ---- The information contained herein is confidential and is intended solely for the addressee. Access by any other party is unauthorised without the express written permission of the sender. If you are not the intended recipient, please contact the sender either via the company switchboard on +44 (0)20 7623 8000, or via e-mail return. If you have received this e-mail in error or wish to read our e-mail disclaimer statement and monitoring policy, please refer to http://www.drkw.com/disc/email/ or contact the sender. 3167 ---------------------------------------------------------------------------- ----

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RE: Block-Level Backup of Filer Volumes
by Palmer, Jason 15 Nov '05

15 Nov '05

Netvault (Backbone) - Tested SMT sucessfully Backup Express (Syncsort) - Not tested by me yet but awaiting to eval These allow the backup of the volume using Snapmirror to tape (SMT) Back at the time I tested NetVault it was pretty basic, but I got the volume + block level snapshots sucessfully off to a Virtual Backup Library (Another nice feature) and then back from the virtual tape library onto another Filers volume intact. Not sure is either of these products have enhanced their block level capabilities since I looked at them last year. I would also be interested to see what others say and come back with Jason -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Ben Rockwood Sent: 15 November 2005 08:14 To: toasters(a)mathworks.com Subject: Block-Level Backup of Filer Volumes I'm looking into various methods for tape backup of our filers. Due to the large number of files a file level backup would be significantly slower than a block-level backup method, however I'm not sure if one exists. I was hoping someone could clarify. NDMP utilizes dump, which is file-based so that doesn't solve the performance issues, and from what I can tell SnapVault is only for disk-to-disk backup, not tape. Even if I direct connect a tape robot to the filer I'd still be using dump and the throughput isn't being limited by the network capacity, so that doesn't help either. I'm hoping there is a block-level method I'm unaware of. NDMP in my tests has been dog slow and standard backups via NFS mount don't sound appealing. Suggestions are welcome. benr. -------------------------------------------------------------------------------- The information contained herein is confidential and is intended solely for the addressee. Access by any other party is unauthorised without the express written permission of the sender. If you are not the intended recipient, please contact the sender either via the company switchboard on +44 (0)20 7623 8000, or via e-mail return. If you have received this e-mail in error or wish to read our e-mail disclaimer statement and monitoring policy, please refer to http://www.drkw.com/disc/email/ or contact the sender. 3167 --------------------------------------------------------------------------------

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Cat5/6/Coax/Optical test gear
by Jeff Mohler 11 Nov '05

11 Nov '05

What do Y'all here have as recommendations for a handheld test set to certify the listed types of signal paths? Theres so many..thought Id ask the list. Thanks!

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