toasters March 1999

toasters@lists.teaparty.net

138 participants
192 discussions

RE: NT backups and snapshots on a F760
by Smith, Gil 19 Mar '99

19 Mar '99

Mark is right that it is best to backup a snapshot (it is not changing) because then you get a consistent backup from a certain point in time. You would potentially miss some files that are changing frequently depending on the backup software your using. But I still think keeping cifs.show_snapshot to the default (off) is best. I would think you would only want to backup a single snapshot (level0) then do incrementals as long as you can. Keep in mind that a decent snapshot schedule can keep you from going to tape in the first place.-Gil -----Original Message----- From: Mark Muhlestein [mailto:mmm@netapp.com] Sent: Friday, March 19, 1999 12:15 PM To: Mike Ball; toasters@mathworks. com Cc: Paul Benn Subject: Re: NT backups and snapshots on a F760 If the snapshot is visible from the explorer (which on newer releases only happens if you set the 'cifs.show_snapshot' option), then yes, you will back up the live filesystem plus all snapshots. The normal procedure is to create a share on a temporary snapshot you create just for the backup. Then when you backup that share you don't get the '~snapshot' in the path. If you want to backup all the snapshots only you can create a share on the ~snapshot directory itself. In that case you will get a copy of all data in all the snapshots, although the paths will start with the snapshot name, so you'll have to be aware of that if you do a restore. Paul Benn has a white paper on all this. Is is on line yet, Paul? Mark Muhlestein -- mmm(a)netapp.com -----Original Message----- From: Mike Ball <mball(a)rtp.opensystems.com> To: toasters@mathworks. com <toasters(a)mathworks.com> Date: Friday, March 19, 1999 8:54 AM Subject: NT backups and snapshots on a F760 >Running NT 4.0 > >Backup programs: Backup Exec, Arcserve IT or NT Backup > >If I am backing up a F760 filer which only has one qtree with NTFS security >and the root volume is setup for NTFS security. If I map the filer C$ from a >NT server and backup the filer from this mapped drive where I can see the >~snapshot directory, will snapshot be backed up by the NT backup programs I >have listed above? If so how much data will the backups contain (-ex- The >active file systems plus the snapshgots)? > > >

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RE: NT backups and snapshots on a F760
by Benn, Paul 19 Mar '99

19 Mar '99

Yes it's now on-line. Here's a link: http://www.netapp.com/technology/level3/3052.html 8><-----snip----snip-----snip----- Paul Benn has a white paper on all this. Is is on line yet, Paul? Mark Muhlestein -- mmm(a)netapp.com -----Original Message----- From: Mike Ball <mball(a)rtp.opensystems.com> To: toasters@mathworks. com <toasters(a)mathworks.com> Date: Friday, March 19, 1999 8:54 AM Subject: NT backups and snapshots on a F760 >Running NT 4.0 > >Backup programs: Backup Exec, Arcserve IT or NT Backup > >If I am backing up a F760 filer which only has one qtree with NTFS security >and the root volume is setup for NTFS security. If I map the filer C$ from a >NT server and backup the filer from this mapped drive where I can see the >~snapshot directory, will snapshot be backed up by the NT backup programs I >have listed above? If so how much data will the backups contain (-ex- The >active file systems plus the snapshgots)? > > >

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RE: NT backups and snapshots on a F760
by Smith, Gil 19 Mar '99

19 Mar '99

Hi Mike, Try this URL, replacing your_filer with the name of a filer running OnTap 5.x on your network, http://your_filer/na_admin/man/na_options.1.html <http://your_filer/na_admin/man/na_options.1.html> I included the relevant section below which I hope answers your question. The answer in my mind being that you should keep this option set to FALSE and then the NT backup programs will not backup multiple copies of your filesystem :) cifs.show_snapshot By default this option is FALSE. The snapshot directory ~snapshot is no longer shown at the root of a share. This is a change in behavior from previous versions. Setting this to TRUE will restore the old behavior. On Windows NT 4 or Windows 95 clients, the user can access snapshots by entering \\filer\share\.snapshot (or ~snapshot or ~snapsht) in the Start->Run menu. Snapshots can also be accessed lower in the share by providing a path to a lower directory. Snapshots can be accessed through DOS on any system by changing to the ~snapsht directory. NOTE: When this option is TRUE it can confuse programs like FastFind that don't know about snapshots. -----Original Message----- From: Mike Ball [mailto:mball@rtp.opensystems.com] Sent: Friday, March 19, 1999 11:52 AM To: toasters@mathworks. com Subject: NT backups and snapshots on a F760 Running NT 4.0 Backup programs: Backup Exec, Arcserve IT or NT Backup If I am backing up a F760 filer which only has one qtree with NTFS security and the root volume is setup for NTFS security. If I map the filer C$ from a NT server and backup the filer from this mapped drive where I can see the ~snapshot directory, will snapshot be backed up by the NT backup programs I have listed above? If so how much data will the backups contain (-ex- The active file systems plus the snapshgots)?

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Re: NT backups and snapshots on a F760
by Mark Muhlestein 19 Mar '99

19 Mar '99

If the snapshot is visible from the explorer (which on newer releases only happens if you set the 'cifs.show_snapshot' option), then yes, you will back up the live filesystem plus all snapshots. The normal procedure is to create a share on a temporary snapshot you create just for the backup. Then when you backup that share you don't get the '~snapshot' in the path. If you want to backup all the snapshots only you can create a share on the ~snapshot directory itself. In that case you will get a copy of all data in all the snapshots, although the paths will start with the snapshot name, so you'll have to be aware of that if you do a restore. Paul Benn has a white paper on all this. Is is on line yet, Paul? Mark Muhlestein -- mmm(a)netapp.com -----Original Message----- From: Mike Ball <mball(a)rtp.opensystems.com> To: toasters@mathworks. com <toasters(a)mathworks.com> Date: Friday, March 19, 1999 8:54 AM Subject: NT backups and snapshots on a F760 >Running NT 4.0 > >Backup programs: Backup Exec, Arcserve IT or NT Backup > >If I am backing up a F760 filer which only has one qtree with NTFS security >and the root volume is setup for NTFS security. If I map the filer C$ from a >NT server and backup the filer from this mapped drive where I can see the >~snapshot directory, will snapshot be backed up by the NT backup programs I >have listed above? If so how much data will the backups contain (-ex- The >active file systems plus the snapshgots)? > > >

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NT backups and snapshots on a F760
by Mike Ball 19 Mar '99

19 Mar '99

Running NT 4.0 Backup programs: Backup Exec, Arcserve IT or NT Backup If I am backing up a F760 filer which only has one qtree with NTFS security and the root volume is setup for NTFS security. If I map the filer C$ from a NT server and backup the filer from this mapped drive where I can see the ~snapshot directory, will snapshot be backed up by the NT backup programs I have listed above? If so how much data will the backups contain (-ex- The active file systems plus the snapshgots)?

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Re: NetCaches and IP representations
by mds＠gbnet.net 19 Mar '99

19 Mar '99

On Thu 18 Mar, 1999, tkaczma(a)gryf.net wrote: > > > On Thu, 18 Mar 1999, James R Grinter wrote: > > > host > > The fully qualified domain name of a network host, or its IP > > address as a set of four decimal digit groups separated by > > ".". > > By this measure hostnames which are not fully qualified are illegal. Thus > http://somebox/ is illegal whereas http://somebox.mathworks.com/ is legal > at least from the host naming perspective. Correct. Now, could someone remind me about the detrimental effects of leaving the trailing '/' off directory URL's and the (il)legality of the use of '~'s in URLs..? > > Tom > >-- End of excerpt from tkaczma(a)gryf.net

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Re: NetCaches and IP representations
by jrg＠acm.org 19 Mar '99

19 Mar '99

On Fri 19 Mar, 1999, tkaczma(a)gryf.net wrote: >By this measure hostnames which are not fully qualified are illegal. Thus The number of problems that can be caused by not using fully qualified names everywhere - I wish it were disallowed! But the intent of the specification is pretty clear with its comment about four groups of decimal digits. (Having finally gone to look at the BSD source, the bit of code that allows this to work is in inet_aton, and it is behaviour that the manual page documents. But most people wouldn't know or expect things like '127.1' to be the same as '127.0.0.1' either...) James.

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RE: Filers and Lotus Notes...
by Allison, Bridget 19 Mar '99

19 Mar '99

Unfortunately I don't have any good info on Notes with NFS but we're about to publish a tech report detailing a config that works fine with NT. I'd be happy to send you a draft version if you need it within the next week or so. We've validated the NT based Notes stuff via NotesBench and the report can be viewed at http://www.netapp.com/technology/level3/notesbench.html or at www.notesbench.org. > -----Original Message----- > From: Paul Taylor [mailto:ptaylor@netaxs.com] > Sent: Monday, March 15, 1999 11:17 AM > To: toasters(a)mathworks.com > Cc: Catalyst PECO support > Subject: Filers and Lotus Notes... > > > > Hi. I would like to know if anyone has had any experience with NetApp > filers and Lotus Notes. Here is our situation: > > We have an F630 that has 2 LN server attached to it (among > other things), > running across Fast Etherchannel. One of the LN servers is on > WinNT and > the other is on AIX. The AIX box is a RS/6000 H50 with a > single CPU, and > 512MB RAM. The NT box is a single CPU netfinity with 512MB > RAM, running at > 400mhz. The Filer has 512MB onboard, running DoT 5.1D12. LN > is v. 4.6.2. > We have 2 networks on each server, a public network that goes to the > internet, and a private network (a 10. ) that goes to the filer. > > The problem we had at first was with LN itself not liking UNC > names. For > this problem I installed PCNFSD, and ran it that way for a > while. Now we > are experiencing corruption at random times. I figure it is > probably the > connectionless nature of NFS. Bah. Anyone have any better ideas? BTW: > client doesn't want to do directory links, it has to run as a > service, and > it has to run as system. > > Next problem: We installed Domino on an RS6K adn it ran > horribly. I moved > it over to local disk, and it ran great. Hmmmmm.... > > Here is the mount info for the rs6k from /etc/filesystems > (commented out > for now since we went to local disk: > > * /lnmobem01: > * dev = "/vol/vol0/lnmobem01" > * vfs = nfs > * nodename = efiler01 > * mount = true > * options > =bg,hard,intr,rsize=4096,wsize=4096,vers=2,proto=udp > account = true > > Anyone have any ideas as to why this would act slow when > opening a DB? it > takes about 1.5 min to open log.nsf, when it should take > about .5 sec. > > Thanks, > > > Paul > > > > >

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stupid SMTP questions
by Graham C. Knight 19 Mar '99

19 Mar '99

Sorry if this seems rudimentary - but i'm looking into this stuff for the first time and i'm finding it a bit confusing. I downloaded and i'm using filer-mrtg which uses mrtg to plot various system parameters - some of which are collected using SMTP. In the cfg files for the filers i can see lines like this: Target[ast-h-tsb02.net.snmp]: 1.3.6.1.4.1.789.1.2.2.2.0&1.3.6.1.4.1.789.1.2.2.3.0:public@ast-h-tsb02 The one above gets total network traffic from the filer. Where do these long lines of numbers come from? Where are they defined? I'm getting the impression that they are somehow related to the netapp.mib file - but i can't find any clues how that format is converted into these sets on numbers. For instance, i'd like to monitor snapshot size - it looks like i could do it according to the netapp.mib but i cannot figure out what string of numbers or parameters to put into the Target field. Any tips - or pointers (including "go read this book") would be much appreciated. Thx, Graham

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Re: NetCaches and IP representations
by jrg＠acm.org 19 Mar '99

19 Mar '99

On Thu 18 Mar, 1999, Alex French <alex(a)medianet.ie> wrote: >Here's one for the obscurities wishlist: our NetCaches don't recognise >integer representations of IPs. Instead of interpreting 3263497985 as >194.133.7.1, for example, they look for www.3263497985.com. If we look at the RFC that covers the specification of URLs - RFC 1738 - and looking at the section that applies to http (3.3): http://<host>:<port>/<path>?<searchpart> where <host> and <port> are as described in Section 3.1. If :<port> [and 3.1 says] host The fully qualified domain name of a network host, or its IP address as a set of four decimal digit groups separated by ".". Fully qualified domain names take the form as described in Section 3.5 of RFC 1034 [13] and Section 2.1 of RFC 1123 [5]: a sequence of domain labels separated by ".", each domain label starting and ending with an alphanumerical character and possibly also containing "-" characters. The rightmost domain label will never start with a digit, though, which syntactically distinguishes all domain names from the IP addresses. (That sort of 'feature' can allow you through proxy net-nanny filters, too, quite often) James.

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toasters March 1999