toasters July 2001

toasters@lists.teaparty.net

105 participants
139 discussions

subsribe to toaster newsgroup
by Hupe_Andreas＠emc.com 18 Jul '01

18 Jul '01

can you please add me to the newsgroup. regards, Andreas Hupe Technical Architect - Network Attached Storage EMC² where information lives Phone: +49-89-93091-233 Mobil: +49-173-6667358 Email: hupe_andreas(a)emc.com EMC Computer Systems Deutschland GmbH Osterfeldstrasse 84 85737 Ismaning

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Screening File Types
by Carruthers, Paul A 17 Jul '01

17 Jul '01

I'm wanting to keep our CIFS clients from writing certain file extensions to our filers via their mapped drives. Does anyone know of any NT based products that will do this real-time? I really don't want to resort to running scripts to delete them each week. Cheers...Paul.

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RE: Ms Exchange and Netapp Filers
by Witham, John 17 Jul '01

17 Jul '01

We currently run 3 Exchange environments on filers, one has a 90GB information store, one has a 36GB information store, and one has a 20GB information store. The Filers have dual GigE NICs running Multi VIF'd to Cisco Catalyst 6509 switches. The Exchange servers have single GigE NICs. The Exchange servers are 6 way Pentium III 700MHz 2MB XEON boxes with 2GB RAM. The 90GB information store is our Home Office. They abuse email like there is no tomorrow, so it's pretty active. If you take the time to set your environment up correctly using SnapRestore, you don't need to worry about M$ support. We've recovered from ourselves (Never let an unskilled admin play with Mailbox Manager), without any issues. We've had one environment up since last summer without any issues. Good Luck! -john John Witham Senior Data Networking Engineer Takeda Pharmaceuticals North America, Inc. V://847.383.3304 F://847.383.3205 mailto://jwitham@takedapharm.com -----Original Message----- From: Waters, G Scott DSTI [mailto:scott.waters@SBCCOM.APGEA.ARMY.MIL] Sent: Friday, July 13, 2001 8:35 AM To: 'lallin(a)millermartin.com' Cc: 'toasters(a)mathworks.com' Subject: RE: Ms Exchange and Netapp Filers >>We are currently a Lotus Notes shop and are looking to move to Exchange. Sorry to hear that. Do you really want to do that?? >>We have specked out a server and are planning to place the Exchange data on the filer. Do you know you are placing your Exchange server in an unsupported mode as far as Microsoft is concerned??? >>Our question is related to connectivity. Is anyone running fast ethernet between their filer and Exchange server? Or is Gigabit the best bet? The place where I work has purchased another filer (we already have one being used for network file services) so that we can move our Exchange databases to it (against my recommendations). The salesman told us that GigE on a private network between the filer and the server is the only way to go. It needs the GigE for quick responses to the Exchange server. I do not have any personal experiences yet. How many people are you planning on supporting and how active are they on e-mail?? Good lUck. - Scott W. This message is for the designated recipient only and may contain privileged or confidential information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.

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SQL Performance
by Jay Newton 17 Jul '01

17 Jul '01

Hi everybody! Are there any folks out there using SQL 7 on a Filer? I'm looking to see what you found as far as performance goes. We just moved 2 production databases to our F840 last night. We noticed that the copies to and from the database are incredibly fast. However, most queries other than the most basic have slowed down. In some cases it's as much as 400%. The Filer has 2 OC-3 ATM links and the database server has 1. We have a few databases that will be adversely affected by that kind of performance decrease. Are there any tips or tricks out there that might help other than going GigE? Any other observations? Thank you!! Jay Newton Systems Engineer Chesapeake Operating 6112-114 (405)810-2683 (405)879-9578 fax

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disk scrub time
by Hannes Herret 17 Jul '01

17 Jul '01

hi all, normally the disk scrub starts on sunday 1 a.m. cause of the running ndmp-backup, the filer counldn't finish the scrub within the default deadline time of 6 h. there are 4 volumes on the filer and just 1 finished the scrub. the other get stopped like following: Sun Jul 8 01:00:00 CES [fsup02: raid_scrub_admin:notice]: Beginning disk scrubbing... Sun Jul 8 07:00:01 CES [fsup02: consumer:notice]: Disk scrub stopped because the scrub time limit was exceeded. Sun Jul 8 07:00:01 CES [fsup02: consumer:notice]: Scrub for volume vol0, RAID group 0 stopped at stripe 13435506. Sun Jul 8 07:00:01 CES [fsup02: consumer:notice]: 0 new parity inconsistencies found, 0 to date. Sun Jul 8 07:00:01 CES [fsup02: consumer:notice]: 0 new checksum errors found, 0 to date. how to resolve this? a. disable automatic disk scrub and start it with cron via rsh i don' like it, cause of the administration b. set the day of the disk scrub to e.g. saturday how to set on the filer? c. lenghten the scrub time limit with raid.scrub.duration i think the default is 0 and the setting works with minutes 0 means unlimited time? 480 means 8 hours? d. optimize scrubbing with raid.scrubbers default is 2 is that the number of processes ontap should use for scrubbing? a or b or c or d, or all of them? any other suggestions or comments are welcome !! cu hannes -- ------------------------------------------------------------------- Hannes Herret IT-Service / Storage phone : +43 (1) 60 126-34 Bacher Systems EDV GmbH fax : +43 (1) 60 126-555 Wienerbergstr. 11B mailto:hh@bacher.at A-1101 Wien, Austria www : http://www.bacher.at/ Europe

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nfs3 vs. HP NFS PV3
by Phil Hill 16 Jul '01

16 Jul '01

hi, is HP NFS PV3 the same like Sun nfs3? Is there something to consider, if I want to connect a HP C3600 and J6000 with HP-UX11 to a NetApp F8xx ( Ontap 6.x ) thanks Phil --

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How to register
by Mati Giladi 15 Jul '01

15 Jul '01

Hi, How can a new user register ? Thanks, Mati.

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RE: An idea on migrating NTFS data
by Walsh, Warren (MN65) 13 Jul '01

13 Jul '01

We recently moved about 400GB of data from a NT4 file server to a Win2k file server using a tool from Fastlane. The tool also had a NetApp proxy, where you would install the software on a third system, independent of the first server and the filer. Not sure if it would work for two filers, but it might be worth a try. It would beat the backup and restore route, and then trying to hack the permissions with the cacls or subinacls tools. Ugh. We had a ton of local groups, and a few local accounts, that were all migrated pretty painlessly. Drop an email back if you want more details on the product. The web page is http://www.quest.com/fastlane/consolidator/. The Fastlane product beat Aletia's in the last Windows 2000 magazine review. -warren -----Original Message----- From: Jeffrey Krueger [mailto:jkrueger@qualcomm.com] Sent: Tuesday, July 03, 2001 4:37 PM To: toasters(a)mathworks.com Subject: An idea on migrating NTFS data We are about to migrate a bunch of data between different filers, among which is some NTFS security style data. The only non-slam-dunk about it is NTFS local groups. Background: We use the Microsoft recommended method of assigning rights to filesystems, that is UGLR (phonetic == Uglier). Users belong to ... Global groups, which belong to ... Local groups, which are assigned access to ... Resources. The problem is that Local groups have a non-global SIDs between machines. That is, each filer assigns its own local SID's to local groups in its /etc/lclgroups.cfg on the root volume. That SID gets moved with the ACL data to the destination, but the destination machine can't resolve its membership with its local groups. The traditional approach to fixing this is using a tool from Aelita or subinacl to traverse the entire destination filesystem (post-migration) and replacing any occurrence of the old SID with that of a new SID for a local group on the destination filer. This is all fine and good, but could take forever. -------- THE IDEA -------- Here's my idea on a better way to do this. Simply shutdown CIFS on the destination machine pre-move and create analogous local group entries with SIDs that match the source. NetApp tech support might not like the idea too much, but it would mean that the same global groups would belong to that SID and thus no filesystem traversing or ACL modification! Ta Da! Unfortunately, we are copying data from more source machines than there are destination machines and we are not copying data per filer - that is some data from filer1 will go to filerA, some to filerB, etc. This means that for my scheme to work, we'd need globally unique local group SID's. Since it appears that ONTAP starts assigning local group SID's at 65536 sequentially, we have lots of conflicting local groups with those lower numbered SID's. To still use the original concept, I had the idea of copying the membership of all the groups on the source filers into new local groups with globally unique SID's. Then run one of the ACL tools to create analogous ACE's for the new group wherever it finds the old one. (This is all done pre-migration) After the migration we simply create local groups on the destination machine with SID's of the new, analogous rights granted group. Has anyone tried something like this before?? Can anyone see any problems with this approach?? How about an alternative approach?? Again, the idea is to prevent the requirement of a filesystem traversal during migration. Thanks in advance!! -- Jeff -- ---------------------------------------------------------------------------- Jeff Krueger, NetApp CA E-Mail: jeff(a)qualcomm.com Senior Engineer Phone: 858-651-6709 Storage Lead (NAS/SAN) Fax: 858-651-6627 QUALCOMM, Inc. IT Engineering Web: www.qualcomm.com

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turning off CIFS termination notification to CIFS clients
by Lella Bennett 13 Jul '01

13 Jul '01

Does anyone know of a way to turn off the notifications that get sent to all connected CIFS clients when CIFS is being terminated? Thanks in advance! Lella Bennett Systems Engineer NAREX Inc. 303.526.4000 x714 - office phone 303.638.8921 - mobile phone

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RE: turning off CIFS termination notification to CIFS clients
by Muhlestein, Mark 13 Jul '01

13 Jul '01

There is a hidden option, cifs.shutdown_msg_level. It is set as follows: "0" Never send broadcast shutdown messages "1" Only send broadcasts to sessions with open files "2" Send broadcasts to all connected sessions (default) Mark > -----Original Message----- > From: Lella Bennett [mailto:LBennett@NAREX.com] > Sent: Friday, July 13, 2001 9:40 AM > To: toasters(a)mathworks.com > Subject: turning off CIFS termination notification to CIFS clients > > > Does anyone know of a way to turn off the notifications that > get sent to > all connected CIFS clients when CIFS is being terminated? > > Thanks in advance! > > Lella Bennett > Systems Engineer > NAREX Inc. > 303.526.4000 x714 - office phone > 303.638.8921 - mobile phone > >

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toasters July 2001