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Disk Controller Failures
by Mingway Huang 25 Jun '99

25 Jun '99

Hi there, We recently encountered a disk controller failure on one of our data servers (not on our Netapp). The problem was that this failure was not a complete failure of the drive itself, but rather the controller started to die slowly. (i.e. handles some request sometimes and other times who knows?) As a result, this caused our entire filesystem to become corrupt and we lost some of our data as a result. Although this filesystem was mirrored, this did not help us at all, as it was considered a logical error in the filesystem and not a hardware problem. My question is that should this occur on a Netapps (this may even apply to any other Enterprise server) would it cause the entire filesystem to go corrupt and cause partial or complete data loss as in this case? Mingway Huang Nortel Networks

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RE: list of file lock types
by Hawley, Rob 23 Jun '99

23 Jun '99

CIFS locks have two parts; basically "What I want to Do" and "What I am going to prevent others from doing". "What I want to Do" EXEC == read + execute R&W == read + write Read read Write write "What I am going to prevent others from doing". DenyAll exclusive access to file DenyR others cannot read the file, but can write DenyW others cannot write file, but can read DenyN others can read or write the file DOS special compatibility mode for DOS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > mailto: hawleyr(a)netapp.com <mailto:hawleyr@netapp.com> US Mail: Network Appliance Inc. > Phone: 408-822-6661 2770 San Tomas Expressway > FAX: 408-822-4521 Santa Clara, CA 95051 -----Original Message----- From: Todd C. Merrill [mailto:tmerrill@mathworks.com] Sent: Tuesday, June 22, 1999 2:24 PM To: toasters(a)mathworks.com Subject: list of file lock types When you do a 'cifs sessions host/user', you get a list like: users shares/files opened machine (user) share Exec-denyW \path R&W-denyAll \path Read-denyAll \path Read-denyN \path Read-denyW \path Write-denyN \path Write-denyW \path Where can I find a comprehensive list of these locks, and what they mean? Most are self-explanatory; but, for instance, what is "N" stand for? NetApp Release 5.2.1P2: Tue Mar 16 10:41:03 PST 1999 Until next time... Todd C. Merrill The Mathworks, Inc. 508-647-7792 24 Prime Park Way, Natick, MA 01760-1500 508-647-7012 FAX tmerrill(a)mathworks.com http://www.mathworks.com ---

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RE: quick question about dumping snapshots
by Melvin, Grant 23 Jun '99

23 Jun '99

Hi Jason, > Hmmm... It seems to be _another_ NDMP bug. The first example I > sent out was generated by running the dump from BudTool via NDMP. This is a bug and its been filed as 15998, the following description will be online tomorrow: TITLE: ndmpd updates the dumpdates table incorrectly when dumping pre-existing snapshots DESCRIPTION: In 5.3, if a dump of a pre-existing snapshot (such as /vol/vol0/.snapshot/hourly.0) is used, the dumpdates table is updated without the ".snapshot/hourly.0". It should only show: /vol/vol0/ 0 Sun Jan 1 00:00:00 1999 However, ndmpd prints out /vol/vol0/.snapshot/hourly.0 0 Sun Jan 1 00:00:00 1999 to the dumpdates table and doesn't modify the dump name to "/vol/vol0/". Sorry for the inconvenience. Cheers, Grant

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help on quotas
by Jason Middlebrooks 23 Jun '99

23 Jun '99

I have the following happening. Overview: F630 running OnTap 5.2.2 using CIFS. Two volumnes vol0 and usr. The volume usr contains everybody home directories using cifs.home_dir. I am using a PDC for authentication and I am not using the passwd or group files on the filer. Whats Happening: I have a quota file with the following entries: /vol/usr/usrhomes/cnievesad user@/vol/usr 5G 20K * user@/vol/usr 80M 15K # Default home directory quota /vol/vol0/trafficker tree 5G 15K /vol/vol0/prod tree 2GB 15K /vol/vol0/tsa tree 4GB 50K I have created a new user called msmith and I created the following directory /vol/usr/userhomes/msmith. msmith can map to his directory fine but when I try to create a new folder or file I get the following messages on the filer: Wed Jun 23 14:34:06 GMT [wafl_lopri]: uid 65534: disk quota exceeded on volume usr. The default home directory quota has working in the past at least when I was at OnTap 5.0 Any ideas??? Thanks in advance Jason

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RE: help on quotas
by Benn, Paul 23 Jun '99

23 Jun '99

For quotas to work properly, you will need to setup and maintain an /etc/passwd and an /etc/group file. We're working on a better document specific to quotas but you can have a quick look at section 5.2 in the following document: http://www.netapp.com/technology/level3/3053.html#Sect5.2 Since quotas are based the UID and since you appear to have a CIFS-only filer, each file's UNIX owner needs to be changed to reflect the correct user name instead of "pcuser." I should have a work-around (the document referenced above) posted on the now site in the next week or so. This should be enough info to get it up and running so you can play around with quotas. Best regards, Paul -----Original Message----- From: Jason Middlebrooks [mailto:Jason_Middlebrooks@datalink.com] Sent: Wednesday, June 23, 1999 9:07 AM To: toasters(a)mathworks.com Subject: help on quotas I have the following happening. Overview: F630 running OnTap 5.2.2 using CIFS. Two volumnes vol0 and usr. The volume usr contains everybody home directories using cifs.home_dir. I am using a PDC for authentication and I am not using the passwd or group files on the filer. Whats Happening: I have a quota file with the following entries: /vol/usr/usrhomes/cnievesad user@/vol/usr 5G 20K * user@/vol/usr 80M 15K # Default home directory quota /vol/vol0/trafficker tree 5G 15K /vol/vol0/prod tree 2GB 15K /vol/vol0/tsa tree 4GB 50K I have created a new user called msmith and I created the following directory /vol/usr/userhomes/msmith. msmith can map to his directory fine but when I try to create a new folder or file I get the following messages on the filer: Wed Jun 23 14:34:06 GMT [wafl_lopri]: uid 65534: disk quota exceeded on volume usr. The default home directory quota has working in the past at least when I was at OnTap 5.0 Any ideas??? Thanks in advance Jason

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quick question about dumping snapshots
by Jason D. Kelleher 23 Jun '99

23 Jun '99

According to NOW, backing up from a snapshot should place the "real" path in /etc/dumpdates: NOW: Knowledge Base: Data ONTAP: Backup and Recovery: Backing up the Filer to Tape: FAQ_575 Q: How do I dump an already-created snapshot? A: Essentially, you only need to specify the snapshot in the dump path. For example, to dump the hourly.0 snapshot, run: dump 0uf rst0a /vol/vol0/.snapshot/hourly.0/rest_of_path In pre-Data ONTAP 5.1 releases, the /etc/dumpdates table entry will look like: /vol/vol0/.snapshot/hourly.0/rest_of_path 0 Tue Jul 28 20:39:46 1998 In post-5.1 releases, the /etc/dumpdates table entry will look like: /vol/vol0/rest_of_path 0 Tue Jul 28 20:39:46 1998 Note that if you are running a pre-multi-volume release (pre-5.0, in other words), the command will look like: dump 0uf rst0a /.snapshot/hourly.0/rest_of_path I'm running DOT 5.3D9. So am I doing something wrong, or is this just another example of bad documentation from NetApp? blacklodge: ~ [635] # grep test /net/bonnie/vol/fs0/etc/dumpdates /vol/fs0/home/test 1 Mon Jun 21 23:49:09 1999 /vol/fs0/home/test 0 Sat Jun 19 01:29:01 1999 blacklodge: ~ [636] # blacklodge: ~ [636] # blacklodge: ~ [636] # grep test /net/bonnie/vol/fs0/etc/dumpdates /vol/fs0/home/test 1 Mon Jun 21 23:49:09 1999 /vol/fs0/home/test 0 Sat Jun 19 01:29:01 1999 /vol/fs0/.snapshot/hourly.0/home/test 0 Tue Jun 22 08:00:54 1999 blacklodge: ~ [637] #

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New 760
by Ron Neuenberger 23 Jun '99

23 Jun '99

If anyone has received a new 760 with the on board fibre channel, make sure your SE had an additional fibre card available as a spare. They are have serious problems with the onboard fibre cards and they don't have any replacement at this time. I have lost 2 now and am waiting for a replacement, meanwhile I am down. Just didn't want this to happen to anyone else.

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list of file lock types
by Todd C. Merrill 22 Jun '99

22 Jun '99

When you do a 'cifs sessions host/user', you get a list like: users shares/files opened machine (user) share Exec-denyW \path R&W-denyAll \path Read-denyAll \path Read-denyN \path Read-denyW \path Write-denyN \path Write-denyW \path Where can I find a comprehensive list of these locks, and what they mean? Most are self-explanatory; but, for instance, what is "N" stand for? NetApp Release 5.2.1P2: Tue Mar 16 10:41:03 PST 1999 Until next time... Todd C. Merrill The Mathworks, Inc. 508-647-7792 24 Prime Park Way, Natick, MA 01760-1500 508-647-7012 FAX tmerrill(a)mathworks.com http://www.mathworks.com ---

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netcache on a F500 series
by kelvin 22 Jun '99

22 Jun '99

Dear all, quick question, is there any way to turn off the caching (other than putting a global url stoplist), and just allowing the netapp box to be a dedicated proxy, rather than a caching proxy? swift responses appreciated, many thanks, kelvin tooth

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Microsoft Access
by Mark D. Fowle 22 Jun '99

22 Jun '99

Retain Until: 07/22/99 Retention Category: G90 - Information and Reports Has anyone had any problems running any Access applications from the NetApps ? Our NT Admin says the apps run fine on NT but when they are on the netapps the lock up (cifs.lock is disabled on the flier --) Are there any NT admins out there experiencing problems that you have not been able to get solutions for ? I feel the Netapps box is great .. but I am slowly becoming the only one at this site that does .... Any information would be helpful. Thanks. Mark Fowle Unix/Metaphase Administration Caterpillar

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