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13520 discussions

[Fwd: Snapshot Cheats?]
by Alfred Lerch 22 Aug '01

22 Aug '01

Hi folks, I have a somewhat similar issue; to reduce the size of snapshots I'd love to remove some files from the snapshots but I don't want to delete the whole snapshot - is there any way to do so ? regards alfred -------- Original Message -------- Subject: Snapshot Cheats? Date: Thu, 16 Aug 2001 10:19:21 +0200 From: "Kennard, Dave M SITI-ISEL-31" <Dave.M.Kennard(a)is.shell.com> To: "'toasters(a)mathworks.com'" <toasters(a)mathworks.com> List, Is there any way to cheat with snapshots so that data in them can be deleted? I have stupidly let a volume on my filer grow to capacity and want to free up space my moving files to another volume, if I just move the files I will get no gain in free disk space because the files will exist in the snapshot right? Could I cheat this by taking a snapshot of the volume before I delete the files then delete the snapshot after the file are deleted? Regards Dave Kennard

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Write timeouts to CIFS share, oplock problem?
by Brian Tao 22 Aug '01

22 Aug '01

Is this type of problem (Windows applications hanging when trying to write out files, or the file being saved is mysteriously deleted from the filesystem) indicative of oplock issues between a Windows client and a filer? I have a few things to look at on the Netapp side, but I want to make sure there isn't some other easy explanation for this. Client is running W2K from a laptop on a 100t port. Filer is on the same switched network also on a 100t port. Filer is an F740 running 5.3.6R1. Oplocks are disabled on the particular filesystems the user is writing to. One filesystem has NTFS-style security and the other uses mixed mode security. The network itself and the filer interface are not congested or seeing packet errors. Do people generally leave oplocks enabled on CIFS shares? Is this feature enabled on NT-based file servers? Reading http://now.netapp.com/NOW/knowledge/docs/ontap/rel536r2/html/sag/cifs25.htm gives me the distinct feeling that oplocks == write-caching with no error checking, which sounds like trouble waiting to happen. First report: > Problem: Excel spreadsheet located in (****** directory) is taking > over 20 min to save. > > (email notes below) > I have a single worksheet Excel spreadsheet stored on CORP-NA1 > (****** directory) that takes over twenty minutes to save. During > that time, my Excel application and my Windows Explorer (which is > open to that directory) appear to be 'hung'. Given enough time, > both applications come back and the entries in the spreadsheet > appear to be saved. > > I am listing this as over 20 minutes, because I have not waited > around long enough to find out how long it actually takes. After 20 > minutes, I've gone off to meetings, and an hour and a half later, it > is working again. Second report (same user): > Sorry for the delay. > > This problem is ongoing. In fact, minutes ago, a new twist > appeared. As Alex was exiting this shared spreadsheet, I was > opening it. It was opened, I accepted a change that had been made > earlier by someone else, and went to save it. At that point, after > a long (three to five minute) wait, it gave a general error message, > and the data file was deleted from CORP-NA1. I was doing this from > a desktop PC on the LAN (not using the VPN). At the same time, > Sandi was online and was having a long delay in opening the > sub-directories under ******, and also saw the data file was > deleted. > > I re-saved the data file, and re-established the shared workbook > privileges. > > I'm still guessing that some sort of NetBIOS timeout is occurring. -- Brian Tao (BT300, taob(a)risc.org) "Though this be madness, yet there is method in't"

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RE: Tape SAN Help
by Collie, Michael 21 Aug '01

21 Aug '01

Hello Earle, Firstly, attached is the URL http://www.netapp.com/osn/info/config.html#fcsan that captures NetApp certified tape SAN configurations. Regarding the configuration you outlined below, the 3rd Party Engineering group (responsible for certifying tape SAN solutions) has no visibility to the Overland Data Library. This library is not NetApp certified. Further, we do not support having any other (non NetApp) device connected to the same FC switch as filers. We believe that if non-NetApp devices must be connected to the same FC switch as with filers, those devices must then be configured in a separate zone from the filers. We are in the process of beginning filer/none filer interoperable switch tests using zoning. The bottom line is, we are not full fabric compliant at this point. The library should be configured as NL-Port before the filer can see the tape drives. You did not mentioned which bridge is in the library. However, we currently support Pathlight and Crossroads bridges in STK L180, L700 and ADIC Scalar 1000 respectively. In summary, the configuration you mentioned is not a supported tape SAN configuration, but hope that the additional information I provided will help you to understand how our supported configuration works. We expect to start talks with Overland very soon on certifying their libraries. Michael. -----Original Message----- From: Ambrose_Earle(a)shamrockfoods.com [mailto:Ambrose_Earle@shamrockfoods.com] Sent: Tuesday, August 21, 2001 3:40 PM To: toasters(a)mathworks.com Subject: Tape SAN Help We are having enormous problems configuring our new tape libraries with our filers. We keep getting different answers from people and I hope that someone on this list has something similar in production and they would be willing to share their information. Here's what we hope to have running: 2 F840c's 1 Brocade 2400 2 internal fibre channel bridges inside an Overland Data library a few other servers on the switch NetVault with dynamic drive sharing option So, should everything be fabric, do we need to zone, any other ideas? Thanks for your time,

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RE: Tape SAN Help
by Parisse, Dave 21 Aug '01

21 Aug '01

Ambrose, Network Appliance has multiple Fibre Channel Solutions for TapeSAN that I urge you to look at. These can be found in our Data Protection Portal at http://www.netapp.com/solutions/data_protection.html and click on the FC SAN on the left. Unfortunately, we do not have an Overland Data Library in our current tapeSAN solutions, but I do want to suggest you make a request through your Netapp Sales Representative specifying library model, etc. so the feedback can be incorporated into future solutions. Our TapeSAN solution certification processes allow us to work with the partners to eliminate any 'enormous problems' you the customer would have deploying those certified tapeSAN configurations. Dave parisse(a)netapp.com Third Party Engineering Manager Network Appliance, Inc. -----Original Message----- From: Ambrose_Earle(a)shamrockfoods.com [mailto:Ambrose_Earle@shamrockfoods.com] Sent: Tuesday, August 21, 2001 3:40 PM To: toasters(a)mathworks.com Subject: Tape SAN Help We are having enormous problems configuring our new tape libraries with our filers. We keep getting different answers from people and I hope that someone on this list has something similar in production and they would be willing to share their information. Here's what we hope to have running: 2 F840c's 1 Brocade 2400 2 internal fibre channel bridges inside an Overland Data library a few other servers on the switch NetVault with dynamic drive sharing option So, should everything be fabric, do we need to zone, any other ideas? Thanks for your time,

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RE: busy snapshot
by Waters, G Scott DSTI 21 Aug '01

21 Aug '01

we had the same thing happen recently. The only way to clear this is to bounce the filer and then delete the snapshot. There is a bug report on the NOW site for this. - Scott W. -----Original Message----- From: Leonard, Roger [mailto:Roger.Leonard@marconi.com] Sent: Tuesday, August 21, 2001 5:09 PM To: 'toasters(a)mathworks.com' Subject: busy snapshot my veritas server crashed during an ndmp backup of my 740 and there is a snapshot_for_backup that is busy and will not let me delete it. it says it is in use by dump or cifs share. any idea how to clear this out? Roger D. Leonard

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Tape SAN Help
by Ambrose_Earle＠shamrockfoods.com 21 Aug '01

21 Aug '01

We are having enormous problems configuring our new tape libraries with our filers. We keep getting different answers from people and I hope that someone on this list has something similar in production and they would be willing to share their information. Here's what we hope to have running: 2 F840c's 1 Brocade 2400 2 internal fibre channel bridges inside an Overland Data library a few other servers on the switch NetVault with dynamic drive sharing option So, should everything be fabric, do we need to zone, any other ideas? Thanks for your time,

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Opera denied !
by Farid Hamjavar 21 Aug '01

21 Aug '01

Greetings, Just checking .... Is it me or now.netapp.com denies access to those of us using Opera web browser? I use Opera 5.12 (the windows version) and all cookies stuff and all SSL stuff (V2 and V3) are turned on and enabled. here are error messages: http://now.netapp.com/nowsmforms/login.fcc The certificate's chain was not ordered properly. Thanks, Farid

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busy snapshot
by Leonard, Roger 21 Aug '01

21 Aug '01

my veritas server crashed during an ndmp backup of my 740 and there is a snapshot_for_backup that is busy and will not let me delete it. it says it is in use by dump or cifs share. any idea how to clear this out? Roger D. Leonard

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RE: virus protection on Filer
by Ziller, Frank 21 Aug '01

21 Aug '01

Take a look at Symantec CarrierScan. -----Original Message----- From: ken pigg [mailto:kenp@uptime.net] Sent: Tuesday, August 21, 2001 4:40 PM To: 'Edward Lee'; toasters(a)mathworks.com Subject: RE: virus protection on Filer http://www.netapp.com/partners/catalog.cgi/company/178 kp -----Original Message----- From: Edward Lee [mailto:edwardlee60@hotmail.com] Sent: Tuesday, August 21, 2001 1:33 PM To: toasters(a)mathworks.com Subject: virus protection on Filer Can anyone recommend a good antivirus program that can do real-time scans of the Filer. I have a 760 and running version 6.1 Thanks, -Eddie _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

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RE: virus protection on Filer
by Benn, Paul 21 Aug '01

21 Aug '01

You can get a solution specifically for the filer from the following vendors: McAfee Symantec Trend Micro Regards, Paul Benn Network Appliance -----Original Message----- From: Edward Lee [mailto:edwardlee60@hotmail.com] Sent: Tuesday, August 21, 2001 11:33 AM To: toasters(a)mathworks.com Subject: virus protection on Filer Can anyone recommend a good antivirus program that can do real-time scans of the Filer. I have a 760 and running version 6.1 Thanks, -Eddie _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

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toasters