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13514 discussions

CIFS Woes
by Gunn, Billy 31 May '00

31 May '00

Is there a file similar to LMHOSTS for the filer. In attempting to implement CIFS after running an initial setup the filer is able to find a domain controller. After stopping and restarting CIFS or after some period of time it becomes unable to find a domain controller in which case the shares are unavailable. NT systems on the same subnet however are able to find a DC with the help of LMHOSTS. There are no DC's on the subnet in question however broadcasts are forwarded. I assume the filer is simply broadcasting for a DC and timing out rather rapidly. TIA, Billy Gunn Interadnet, Inc

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F740 and subnet problems
by Uros Lampret 31 May '00

31 May '00

Hi! I'm relatively new to this business and I have some problems. I recently installed F740 and everything works joust great. BUT I have some access problems. Filer is installed in subnet 10.0.1.XXX and everybody can see it and use it. But from subnet 10.0.2.XXX or 10.0.10.XXX the filer is not accessible. If I PING form Filer someone to 10.0.10.XXX everything is OK and also if I PING Filer from 10.0.10.XXX - OK. We use CIFS and this is single Domain. Any suggestions? Uros Lampret Our Space d.o.o. Malnarjeva 47 1000 Ljubljana EU - Slovenia

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RE: SQL Server 7 with data files on toaster?
by chris.hackett＠netapp.com 31 May '00

31 May '00

Colm, I was in charge of our Vantive database for the Sales department when we switched it over to a Filer for storage. Our internal sales group uses Vantive to track their contacts and leads. This application runs in an NT environment on a Dell Poweredge 6350 with four processors. Vantive itself runs on top of a MS SQL database. We connect all of the data files from this database out to a pair of clustered F760s. This has been in place since last December, and has been working great since. The system has only been down twice since we went to this configuration - both planned. Once to move the equipment to a different subnet, and a second time when we installed the CFO hardware. The Cluster Failover setup provides us with additional security and flexibility. Though, due to the stateful nature of CIFS, a successful failover requires some manual SQL Server intervention, we feel the overall configuration saves us time when we need to run scheduled maintenance on the Vantive Filer and provides us with availability should we experience unscheduled downtime of this Filer. As for the performance, it's great. In fact, I would say that if anything we have seen a slight performance increase due to the fact that many of the searches are repeated across many diffferent users (such as a search for all of the new leads from a particular tradeshow), in addition to all of the other normal reasons. Additionally, we have installed the SnapRestore software onto these machines and have snapshots running every hour. If something were to happen, we can recover from the snapshot taken at the top of the hour, instead of relying on the more manual process (where it has taken multiple hours to restore in the past). As you probably know, when we perform the SnapRestore, it's a simple reboot of the Filer, then we are working again. The value this provides to the Sales team is difficult to measure. If you have any other questions, please let me know. chris > > -----Original Message----- > From: Colm Buckley [mailto:colm@tuatha.org] > Sent: Friday, May 19, 2000 9:38 AM > To: toasters(a)mathworks.com > Subject: SQL Server 7 with data files on toaster? > > > > Hi - > > Another request for success or horror stories; does anyone on the list > have experience with running MS SQL Server 7 using a toaster to store > the data (as described in http://www.netapp.com/tech_library/3042.html > and http://www.netapp.com/tech_library/3044.html)? One possibility > being looked at here is to run a database from something like a Dell > PowerEdge 8450 with the data files on an F720 or F740. I'm > aware of the > advantages the toaster will bring in relation to backup, > snapshots etc, > but I'm interested in how the performance of such a setup > would compare > to, say, attaching a big LVD or Fibre RAID5 directly to the server. > > Any comments? > > Colm > > -- > Colm Buckley BA BF | NewWorld Commerce, 44 Westland Row, > Dublin 2, Ireland > colm(a)tuatha.org (personal) | colm.buckley(a)nwcgroup.com (business) > +353 87 2469146 | whois cb3765 | http://www.tuatha.org/~colm/ > No, my powers can only be used for good. > >

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RE: CIFS permissions
by rob.hawley＠netapp.com 30 May '00

30 May '00

The information below would imply that the user would get by the share permissions. It would still have to also get by the file permissions. You should also confirm the permissions assigned to your user by doing a cifs sessions -s. Here are two articles that will allow you to diagnose security problems: http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/ts2… l http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/ts1… l This is a more detailed article on the security model http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/con… .shtml If the answer does not fall out of the above troubleshooters (or you need access to NOW), please contact customer support. I would suggest having the qtree type, the output of cifs sessions -s, and the reported ACL for the directory you are trying to write to available when you call. You should also report the version of the filer and the version of the client. They should be able to solve this very quickly. -----Original Message----- From: Gunn, Billy [mailto:bgunn@InterAdNet.com] Sent: Tuesday, May 30, 2000 2:20 PM To: 'toasters(a)mathworks.com' Subject: CIFS permissions Hi. I have setup an CIFS share called htdocs. issuing the command 'cifs shares' on the filer returns: htdocs /vol/vol0/media/htdocs INTERADNET\bgunn / Full Control I set up the privaleges so that bgunn would have full control. I can browse the share with no problems however, when attempting to write to the share I get an Access denied error. This share has been mapped to a dirve letter. When viewing the NTFS permissions for the drive it indicates rwx across th board. Is there some other location where permissions are set? Thanks, Billy Gunn Interadnet, Inc.

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CIFS permissions
by Gunn, Billy 30 May '00

30 May '00

Hi. I have setup an CIFS share called htdocs. issuing the command 'cifs shares' on the filer returns: htdocs /vol/vol0/media/htdocs INTERADNET\bgunn / Full Control I set up the privaleges so that bgunn would have full control. I can browse the share with no problems however, when attempting to write to the share I get an Access denied error. This share has been mapped to a dirve letter. When viewing the NTFS permissions for the drive it indicates rwx across th board. Is there some other location where permissions are set? Thanks, Billy Gunn Interadnet, Inc.

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RE: Samba Vs CIFFS
by paul.benn＠netapp.com 30 May '00

30 May '00

> We use both together... > I think that for simplicity, you should get the NetApp > license and use it... > We use Samba as an helper application for handling > soft-links, which we own a > lot... > NetApp can handle soft-links also, but of course not to > outside machines.... Here's a repost of a message posted on this subject a month ago. Stay Tuned! paul@netapp -----Original Message----- From: Muhlestein, Mark Sent: Thursday, April 27, 2000 1:21 PM To: 'Timothy Demarest'; toasters(a)mathworks.com Subject: RE: Any way for CIFS to see symlinks across qtrees/shares? That restriction exists to enforce share level ACLs. However, we do have plans to allow such symlinks securely. Unfortunately, I can't give you info on when. I'll add you to the list of folks who have asked for this. Mark Muhlestein -- mmm(a)netapp.com > -----Original Message----- > From: Timothy Demarest [mailto:demarest@arraycomm.com] > Sent: Thursday, April 27, 2000 11:31 AM > To: toasters(a)mathworks.com > Subject: Any way for CIFS to see symlinks across qtrees/shares? > > > > Is there any way to set the Filer to allow symbolic links to > traverse other > qtrees? I have a symlink on one CIFS share, which is a qtree, > that points > to a directory on another CIFS share, which is another qtree. > Obviously, > this works fine for NFS clients, but the CIFS clients just > see the symlink > as a regular file, not as a directory. > > Thanks, > Tim > >

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Linux 'disk sleep' process
by Henrique Pantarotto 30 May '00

30 May '00

Hello toaster friends, please forgive me if anyone finds this message to be off-topic. I have POP3 and SMTP daemons running on a Linux server, using a F760 filer with NFS. Often, our Linux server gets a couple of stuck processes, that won't go away. It's not possible to kill them. It has "disk sleep" status, and they cannot receive kill commands. Does anyone knows how can I kill this processes? I have a couple that are over a week old. Thanks a lot! [root@blabla /]# ls /proc/13797/fd -l total 0 lrwx------ 1 root root 64 May 30 16:31 0 -> socket:[17770653] lrwx------ 1 root root 64 May 30 16:31 1 -> socket:[17770653] lrwx------ 1 root root 64 May 30 16:31 2 -> socket:[17770653] lrwx------ 1 root root 64 May 30 16:31 3 -> /var/spool/pop/.nfs0015790300007a77 [root@blabla /]# cat /proc/13797/status Name: nnpopper State: D (disk sleep) Pid: 13797 PPid: 557 Uid: 520 520 520 520 Gid: 12 12 12 12 Groups: 0 VmSize: 2176 kB VmLck: 0 kB VmRSS: 856 kB VmData: 312 kB VmStk: 20 kB VmExe: 320 kB VmLib: 1436 kB SigPnd: 0000000000000000 SigBlk: fffffffffffffeff SigIgn: 0000000000000000 SigCgt: 0000000000001001 CapInh: 00000000fffffeff CapPrm: 0000000000000000 CapEff: 0000000000000000 _______________________________________________ Henrique Pantarotto SysOp Site São Paulo Terra Networks Brasil S/A A Internet mais sua do que nunca Tel: (11) 5505-5728 r.316/238 ICQ: 6934285 henrique(a)corp.terra.com.br

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RE: NT + Unix access rights
by rob.hawley＠netapp.com 30 May '00

30 May '00

The NetApp security model is that each file/directory has exactly one type of security style; Unix or NT. When accessing the file from the native security side (i.e. NT accessing a file with ACLs) then Native security rules apply. When accessing from the other side (i.e. NFS accessing a file with an ACL), we must first map the user into an NT user. Once we do that we can use normal ACL rules. Normally we just convert the UID into a user name and then look up the user name in the filer's domain ( or in a list of trusted domains). It is possible to override this default mapping using the mapping file described below. These are used when the names are different on the two sides ( e.g. Administrator on NT and root on UNIX). This is a more detailed article on the security model http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/con… .shtml Here are two articles that will allow you to diagnose security problems: http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/ts2… l http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/ts1… l The console commands wcc and cifs security -s can help in understanding how the mapping operates. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mailto: hawleyr(a)netapp.com US Mail: Network Appliance Inc. Phone: 408-822-6661 495 East Java Drive FAX: 408-822-4521 Sunnyvale, CA 94089 -----Original Message----- From: Bruce Sterling Woodcock [mailto:sirbruce@ix.netcom.com] Sent: Monday, May 29, 2000 5:06 PM To: Michael van Elst Cc: toasters(a)mathworks.com Subject: Re: NT + Unix access rights ----- Original Message ----- From: "Michael van Elst" <mlelstv(a)xlink.net> To: "Bruce Sterling Woodcock" <sirbruce(a)ix.netcom.com> Cc: "Michael van Elst" <mlelstv(a)xlink.net>; <toasters(a)mathworks.com> Sent: Monday, May 29, 2000 4:30 PM Subject: Re: NT + Unix access rights > On Mon, May 29, 2000 at 10:14:10AM -0700, Bruce Sterling Woodcock wrote: > > > The usermap maps the UNIX 'root' account to the NT 'Administrator' > > > account. The NT 'Administrator' account is mapped to an unprivileged > > > UNIX account different from the file owner. > > > > Can someone explain this? I don't follow. > > The software release 5.3 has the feature to map Accounts independently > for the UNIX side and the NT side. I.e. the usermap file has the lines: > > Administrator <= root > Administrator => ntadmin > > where ntadmin is an unprivileged account and root is the regular > privileged account. Is the mapping only for access, or only for ownership? I understand that if root creates a file, and you look at it from NT, it will be owned by Administrator (with the mapping given above). But when Administrator tries to access it, he'll be mapped to ntadmin, which doesn't have access?? Bruce

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NT + Unix access rights
by Michael van Elst 30 May '00

30 May '00

Hi, I'm using an F740 running 5.3.4R3. One volume uses a qtree with mixed security settings. Within that qtree I have a couple of files that cannot be accessed at all. The files were created by an NT client. On the UNIX side I can neither read nor touch the files. I cannot chmod or chown them. I cannot remove them. I could 'mv' them to a different directory once. I can create a hard link to them but which isn't deletable anymore. The file shows up with 0700 permissions. The directory where the file is located and all directories above were created by a UNIX client. This is true independent on wether I am working as root or as the files' owner (according to the usermap). On the NT side I cannot use the file either and I cannot even look at the security settings for the file. This is also independent of the user. Neither the owner nor the Administrator has access to the file. The usermap maps the UNIX 'root' account to the NT 'Administrator' account. The NT 'Administrator' account is mapped to an unprivileged UNIX account different from the file owner. I learned that the undocumented command 'rm' on the filers console (after rc_toggle_basic) allows to delete these files. Is there anything I can do ? Regards, -- i.A. Michael van Elst / phone: +49 721 9652 330 Xlink - Network Information Centre \/ fax: +49 721 9652 349 Emmy-Noether-Strasse 9 /\ link http://nic.xlink.net/ D-76131 Karlsruhe, Germany /_______ email: hostmaster(a)xlink.net [ KPNQwest Germany GmbH, Sitz Karlsruhe ] [ Amtsgericht Karlsruhe HRB 8161, Geschaeftsfuehrer: Koen Bertoen ]

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RE: NT + Unix access rights
by Graham.Knight＠netapp.com 29 May '00

29 May '00

In NT you can set the ACL of a file so tight that the Administrator cannot read it. What you should try to do is map the drive as Administrator, then Take Ownership of the file. If that succeeds you should be able to set the ACL to whatever you want it to be, or delete the file. Another thing you might want to consider is setting this option: cifs.nfs_root_ignore_acl on This allows a root user on a root mounted NFS partition to do whatever it wants to a file with an ACL. I'm not 100% positive that the option above is available on 5.3.4R3. I know that it is available in 5.3.4R3P2. Graham -----Original Message----- From: Michael van Elst [mailto:mlelstv@xlink.net] Sent: Monday, May 29, 2000 10:48 AM To: toasters(a)mathworks.com Cc: Michael van Elst Subject: NT + Unix access rights Hi, I'm using an F740 running 5.3.4R3. One volume uses a qtree with mixed security settings. Within that qtree I have a couple of files that cannot be accessed at all. The files were created by an NT client. On the UNIX side I can neither read nor touch the files. I cannot chmod or chown them. I cannot remove them. I could 'mv' them to a different directory once. I can create a hard link to them but which isn't deletable anymore. The file shows up with 0700 permissions. The directory where the file is located and all directories above were created by a UNIX client. This is true independent on wether I am working as root or as the files' owner (according to the usermap). On the NT side I cannot use the file either and I cannot even look at the security settings for the file. This is also independent of the user. Neither the owner nor the Administrator has access to the file. The usermap maps the UNIX 'root' account to the NT 'Administrator' account. The NT 'Administrator' account is mapped to an unprivileged UNIX account different from the file owner. I learned that the undocumented command 'rm' on the filers console (after rc_toggle_basic) allows to delete these files. Is there anything I can do ? Regards, -- i.A. Michael van Elst / phone: +49 721 9652 330 Xlink - Network Information Centre \/ fax: +49 721 9652 349 Emmy-Noether-Strasse 9 /\ link http://nic.xlink.net/ D-76131 Karlsruhe, Germany /_______ email: hostmaster(a)xlink.net [ KPNQwest Germany GmbH, Sitz Karlsruhe ] [ Amtsgericht Karlsruhe HRB 8161, Geschaeftsfuehrer: Koen Bertoen ]

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