toasters July 2007

toasters@lists.teaparty.net

50 participants
36 discussions

CIFS shares presentation to users
by Paul Letta 27 Jul '07

27 Jul '07

Hello, We we getting ready to consolidate several older filers onto a single FAS3040. Each of these older filers had several CIFS shares exposed. My users are used to going to the Run box in windows and typing \\filerA to get filersA's shares and \\filerB to get filer B's shares and so on. But now there is just \\Newfiler. This produces a list of all the CIFS shares that used to be on several different filers. Is there a way to group several cifs shares together and present them in a folder, or another share ? I would like to be able to go to \\NewFiler, and get a window that has a few folders, each of which holds several shares. I don't think this can be done, but I thought I would ask here anyways. Thanks, Paul

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Snapshot delete
by Steffen Kammerer 26 Jul '07

26 Jul '07

Hi Toasters List, we create manually snapshots to make backups if we deploy new software releases. Now I want to delete automatically all snapshots older than 6 hours, because of special restrictions. I read the manual about snap autodelete but I cant find an option. Has anyone experience in those things? Greetings Steffen

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RE: usermapping UNIX <-> NT
by Willeke, Jochen 26 Jul '07

26 Jul '07

Hi, we have a directory service which is our AD, but only for windows. But maybe this is not enough.... Do we need a special one for the unix side, too?? Rgds Jochen -----Original Message----- From: tmac [mailto:tmacmd@gmail.com] Sent: Tuesday, July 24, 2007 3:13 PM To: Willeke, Jochen Subject: Re: usermapping UNIX <-> NT IF you are not using a name service (like LDAP or NIS), then yes it is expected. Every CIFS SID must map to some UNIX UID. If you look at your password file, you probably have at least the "pcuser" in there, which may even be 65534. From your original post, I would say this is the case. Either install a name service, or create a password file: username::UID:GID::: That is all you need unless you want to get fancy with FTP or something. You may need to terminate current CIFS sessions to force them to re-authenticate properly. On 7/24/07, Willeke, Jochen <Jochen.Willeke(a)wincor-nixdorf.com> wrote: > Hi colleagues, > > i found out something strange... > > After setting wafl.default_nt_user "" > i ended up, that no User from Windows was able to access shares, because > it seems that the filer maps every user from our Domain to "pcuser". > > I was never aware of that fact....Is this correct behaviour?? > > Rgds > > Jochen > > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] > On Behalf Of Willeke, Jochen > Sent: Monday, July 23, 2007 3:17 PM > To: toasters(a)mathworks.com > Subject: FW: usermapping UNIX <-> NT > > Hi, > > wafl.default_nt_user > > was it.... > > No set it to wafl.default_nt_user "" > > and it is working lika a charm :D > > Rgds and thanks to all > > Jochen > > -----Original Message----- > From: Parisi, Justin [mailto:Justin.Parisi@netapp.com] > Sent: Monday, July 23, 2007 3:02 PM > To: Willeke, Jochen > Subject: RE: usermapping UNIX <-> NT > > Check your options for mappings from PC users - options > cifs.guest_account and options wafl.default_nt_user - you may have > nobody as an entry in one of those options... > > -----Original Message----- > From: Willeke, Jochen [mailto:Jochen.Willeke@wincor-nixdorf.com] > Sent: Monday, July 23, 2007 7:02 AM > To: toasters(a)mathworks.com > Subject: usermapping UNIX <-> NT > > Hi toasters, > > we currently have a strange problem. We have setup a volume with mixed > security style and exports and CIFS shares on it. I have made an entry > in the usermap.cfg like this > > Domain\jochen.willeke == utest > > In filers local passwd utest has UID 1234 (only for a test). > Mapping checked with wcc seems to work well, but when i create a folder > from the windows side with my user jochen.willeke and then check with > "ls -n" from a unix host, it shows me the UID and group ID from nobody > (65534). > > Has anybody an idea where my mistake is?? > > Best Regards and thanks in advance > > Jochen > > > -- --tmac RedHat Certified Engineer

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RE: NetApp Thin Provisioning and VMware ESX
by Kenneth Heal 26 Jul '07

26 Jul '07

HiDon't know if you have seen http://www.netapp.com/library/tr/3428.pdf. This talks a bit more about ESX and Netapp together.Reading this description it sounds like there may be old snapshots and/or space reservations at play here. In the case of the former snapshot auto-deletion may prove to be a help.Could you check this and grab us a df output?I haven't tried this combo, so there may be someone out there who has already done this and could say more.regardsKenneth HealStorage ConsultantSenet Eindhoven bvSubject: NetApp Thin Provisioning and VMware ESXDate: Tue, 17 Jul 2007 22:54:03 +0200From: drenthjd(a)wxs.nlTo: toasters(a)mathworks.com Hi Toasters, We created something of an interesting dilemma for ourselves. The original problem was the lack of a means to extend existing VMFS LUNs through ESX without an extent and or downtime. The idea was to use NetApp thin provisioning as a way to offer up a large disk to ESX without the need to back that up with real disks, as a way to monitor real disk usage we created a hard volume and monitor with df the real use of disk against a hard limit (being the volume). So a 1 TB Lun (thin) was created inside a 200 GB (hard) volume, subsequently we wanted to keep track of ESX 3's usage through controlling the size of the VMDK files we would create. As this environment hosts desktops and was a testing ground at first there were a whole bunch of VMDK being created and destroyed. The situation we end up with is VMware thinking it has 60 GB in use of a 1 TB LUN while NetApp reports 180 GB in use of 200 GB (being the hard limit at this time). Basically the question becomes whether we can force ESX to actually reuse any of the [netapp in use] - [real use according to ESX] = 130 GB of space. Probably we need to clean up and start over with a new clean LUN, which we could then either hard provision and forget about thin provisioning altogether, because in our scenario it is no help. A broader question becomes were we went wrong? Our situation seems to suggest that we waste a whole lot of disk space - which VMware wont reuse on its own, and which NetApp can't touch (how would it know it was now freed up space) In that sense thin provisioning is just a space waster in an environment with VMDK's being destroyed and recreated from scratch. Of course we could always go flexcloning... but that would force netapp world on a whole lot of admins. Best regards, Delorean _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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RE: AW: NetApp and NetBackup
by Sels Roger 25 Jul '07

25 Jul '07

Hi, It's obvious that a multitier NetApp solution is the best way to go ;-) But, an alternative would be using NDMP, and NetBackup is in that sense a very good choice. This way you can dump the snapshots on tape. In terms of tape connectivity you have different option: direct into your NetApp, into a fabric or over ip. For more information, please refer to "Data Protection Solutions Overview" by Nicholas Wilhelm-Olsen | Network Appliance | TR-3131. Cheers, Roger -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Brett Clarke Sent: wo 25 jul 07 10:47 To: toasters(a)mathworks.com Subject: RE: AW: NetApp and NetBackup Thanks for the info, Walter. I think you are right - SnapVault is definitely the way to go. The million dollar question is, will I be able to justify the extra expense to management??? :) (keep your fingers crossed for me). Cheers! Brett -----Original Message----- From: Kießl Walter [mailto:kiessl@heidenhain.de] Sent: Wednesday, 25 July 2007 5:46 PM To: Brett Clarke; toasters(a)mathworks.com Subject: AW: NetApp and NetBackup Hi Brett, we use NetApps Snapvault product to backup the Exchange-LUNs to a R200. It's a backup-to-disk solution and shortens backup-time and backup ressource consumption dramatically (snapvault is based upon snapshots and transfers only the changed blocks). In my opinion it's easier to admin because you need not to mount snapshots on a backupserver via script. Once implemented Snapvault copies your (consistent SME)snapshots each day without additional work to do. Regards Walter Kiessl -----Ursprüngliche Nachricht----- Von: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] Im Auftrag von Brett Clarke Gesendet: Mittwoch, 25. Juli 2007 09:00 An: toasters(a)mathworks.com Betreff: RE: NetApp and NetBackup We want to backup the filesystems on the lun. Having done some more investigation, it appears the NetBackup Snapshot integration only works with CIFS/NFS shares, not with LUN's. Which I guess leads me into my next train of thought. How are people performing backups to tape of EX07 systems? Currently we schedule regular snapshots using SME, and then run a script on a backup server to mount the snapshots as local drives and perform local filesystem backups on the backup server. To me this feels a bit cludgy, and not at all "elegant". -----Original Message----- From: Blake Golliher [mailto:thelastman@gmail.com] Sent: Wednesday, 25 July 2007 3:54 PM To: Brett Clarke Cc: toasters(a)mathworks.com Subject: Re: NetApp and NetBackup Are you trying to backup the luns file or the filesystem on the lun from the client point of view? On 7/24/07, Brett Clarke <brett.clarke(a)dpworld.com> wrote: > > > > > Hi Everyone, > > > > We have not long had our FAS3020's, and have just purchased NetBackup > to start putting snapshots to tape. NBU was chosen because of its > Advanced Client's NetApp integration (and because our NetApp reps recommended it!). > We're struggling to get the whole thing talking, and the Symantec > consultants on site are struggling as well. Has anyone here > implemented a similar configuration before, and would be able to let > on any tips/traps/hints picked up along the way??? Or anyone know of > any online resources that might help? (NOW doco focuses on Oracle > implementations using NetBackup). > > > > A bit of background would help I guess - We're running clustered > 3020C's, with about a dozen hosts all attached via iSCSI. We have a > mix of Exchange 2007, SQL 2005 (both currently using SnapManager to > schedule snapshots), plus some standalone infrastructure servers > (using snapdrive and the cli the schedule snapshots). We're talking > OnTAP 7.2.2, and NetBackup 6.0 MP4. Let me know if there is other info I should include. > > > > Cheers everyone! > > > > Brett Clarke > Senior Linux/Unix Administrator > DP World Australia > ________________________________ > This e-mail and its attachments are intended for the named addressee > only and no liability is accepted for use or reliance on any part of > this e-mail by any other person. It is confidential, may be subject > to privilege and is also subject to copyright. No part of it should > be reproduced, adapted or communicated without the written consent of > the copyright owner. Any confidentiality or privilege is not waived > or lost because this e-mail has been received by you and you are not > the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. > > Please note that e-mails can be interfered with, can contain computer > viruses or other defects and may not be successfully replicated on > other systems. This footnote confirms that this e-mail message has > been swept for the presence of computer viruses. However whilst the > sender has taken reasonable precautions to minimise the risk of this > email and any attachment containing viruses, we cannot accept > liability for any such viruses and we give no warranties in relation > to any of the above matters. If you have any doubts about the > authenticity of this e-mail please contact the sender immediately. No > responsibility is accepted for any changes made to a document other > than those made by the sender. > This e-mail and its attachments are intended for the named addressee only and no liability is accepted for use or reliance on any part of this e-mail by any other person. It is confidential, may be subject to privilege and is also subject to copyright. No part of it should be reproduced, adapted or communicated without the written consent of the copyright owner. Any confidentiality or privilege is not waived or lost because this e-mail has been received by you and you are not the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. Please note that e-mails can be interfered with, can contain computer viruses or other defects and may not be successfully replicated on other systems. This footnote confirms that this e-mail message has been swept for the presence of computer viruses. However whilst the sender has taken reasonable precautions to minimise the risk of this email and any attachment containing viruses, we cannot accept liability for any such viruses and we give no warranties in relation to any of the above matters. If you have any doubts about the authenticity of this e-mail please contact the sender immediately. No responsibility is accepted for any changes made to a document other than those made by the sender. ------------------------------------------------------------------------------------------------------- Registergericht: Traunstein / Code of Register HRB 275 Sitz / Head Office: Traunreut Aufsichtsratsvorsitzender / Chairman of Supervisory Board: Rainer Burkhard Geschäftsführung / Managing Director: Thomas Sesselmann This e-mail and its attachments are intended for the named addressee only and no liability is accepted for use or reliance on any part of this e-mail by any other person. It is confidential, may be subject to privilege and is also subject to copyright. No part of it should be reproduced, adapted or communicated without the written consent of the copyright owner. Any confidentiality or privilege is not waived or lost because this e-mail has been received by you and you are not the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. Please note that e-mails can be interfered with, can contain computer viruses or other defects and may not be successfully replicated on other systems. This footnote confirms that this e-mail message has been swept for the presence of computer viruses. However whilst the sender has taken reasonable precautions to minimise the risk of this email and any attachment containing viruses, we cannot accept liability for any such viruses and we give no warranties in relation to any of the above matters. If you have any doubts about the authenticity of this e-mail please contact the sender immediately. No responsibility is accepted for any changes made to a document other than those made by the sender.

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NetApp and NetBackup
by Brett Clarke 25 Jul '07

25 Jul '07

Hi Everyone, We have not long had our FAS3020's, and have just purchased NetBackup to start putting snapshots to tape. NBU was chosen because of its Advanced Client's NetApp integration (and because our NetApp reps recommended it!). We're struggling to get the whole thing talking, and the Symantec consultants on site are struggling as well. Has anyone here implemented a similar configuration before, and would be able to let on any tips/traps/hints picked up along the way??? Or anyone know of any online resources that might help? (NOW doco focuses on Oracle implementations using NetBackup). A bit of background would help I guess - We're running clustered 3020C's, with about a dozen hosts all attached via iSCSI. We have a mix of Exchange 2007, SQL 2005 (both currently using SnapManager to schedule snapshots), plus some standalone infrastructure servers (using snapdrive and the cli the schedule snapshots). We're talking OnTAP 7.2.2, and NetBackup 6.0 MP4. Let me know if there is other info I should include. Cheers everyone! Brett Clarke Senior Linux/Unix Administrator DP World Australia ________________________________ This e-mail and its attachments are intended for the named addressee only and no liability is accepted for use or reliance on any part of this e-mail by any other person. It is confidential, may be subject to privilege and is also subject to copyright. No part of it should be reproduced, adapted or communicated without the written consent of the copyright owner. Any confidentiality or privilege is not waived or lost because this e-mail has been received by you and you are not the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. Please note that e-mails can be interfered with, can contain computer viruses or other defects and may not be successfully replicated on other systems. This footnote confirms that this e-mail message has been swept for the presence of computer viruses. However whilst the sender has taken reasonable precautions to minimise the risk of this email and any attachment containing viruses, we cannot accept liability for any such viruses and we give no warranties in relation to any of the above matters. If you have any doubts about the authenticity of this e-mail please contact the sender immediately. No responsibility is accepted for any changes made to a document other than those made by the sender.

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FW: usermapping UNIX <-> NT
by Willeke, Jochen 24 Jul '07

24 Jul '07

Hi, wafl.default_nt_user was it.... No set it to wafl.default_nt_user "" and it is working lika a charm :D Rgds and thanks to all Jochen -----Original Message----- From: Parisi, Justin [mailto:Justin.Parisi@netapp.com] Sent: Monday, July 23, 2007 3:02 PM To: Willeke, Jochen Subject: RE: usermapping UNIX <-> NT Check your options for mappings from PC users - options cifs.guest_account and options wafl.default_nt_user - you may have nobody as an entry in one of those options... -----Original Message----- From: Willeke, Jochen [mailto:Jochen.Willeke@wincor-nixdorf.com] Sent: Monday, July 23, 2007 7:02 AM To: toasters(a)mathworks.com Subject: usermapping UNIX <-> NT Hi toasters, we currently have a strange problem. We have setup a volume with mixed security style and exports and CIFS shares on it. I have made an entry in the usermap.cfg like this Domain\jochen.willeke == utest In filers local passwd utest has UID 1234 (only for a test). Mapping checked with wcc seems to work well, but when i create a folder from the windows side with my user jochen.willeke and then check with "ls -n" from a unix host, it shows me the UID and group ID from nobody (65534). Has anybody an idea where my mistake is?? Best Regards and thanks in advance Jochen e this > > > > Domain\jochen.willeke == utest > > > > In filers local passwd utest has UID 1234 (only for a test). > > Mapping checked with wcc seems to work well, but when i create a > folder > > from the windows side with my user jochen.willeke and then check with > > "ls -n" from a unix host, it shows me the UID and group ID from nobody > > (65534). > > > > Has anybody an idea where my mistake is?? > > > > Best Regards and thanks in advance > > > > Jochen

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usermapping UNIX <-> NT
by Willeke, Jochen 23 Jul '07

23 Jul '07

Hi toasters, we currently have a strange problem. We have setup a volume with mixed security style and exports and CIFS shares on it. I have made an entry in the usermap.cfg like this Domain\jochen.willeke == utest In filers local passwd utest has UID 1234 (only for a test). Mapping checked with wcc seems to work well, but when i create a folder from the windows side with my user jochen.willeke and then check with "ls -n" from a unix host, it shows me the UID and group ID from nobody (65534). Has anybody an idea where my mistake is?? Best Regards and thanks in advance Jochen

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VMware ESX and NFS Performance issues at mount-time (was RE: NetApp Thin Provisioning and VMware ES
by Kenneth Heal 20 Jul '07

20 Jul '07

Hi JackNo, this is not normal.My first suspicion would be network connectivity problems, as NFS is quite sensitive to under/bad- performing networks.When tried mounting the export from another box, was the other box in the same subnet as your ESX machine?The other thing to of course check out is if you have configured virtual switches and virtual network architecture on the ESX machine.Depending on your situation (whether you are on-site and which bit of the network are mission critical and so on) I would first of all try putting a laptop or another box on the same place as the ESX server originally was, give it the same IP address and use a non-virtualised Linux/Un*x and see if you are able to mount the export successfully. This would then allow you to include/exclude ESX and ESX virtual infrastructure on the one hand and actual network infrastructure as the source of the problem.I would also check the filer messages log from the time you are trying to mount the system, as this may also reveal clues as to what is going on.Let us know how you get on or if this proves not feasible =(e.g. remote site)... maybe others on this dl also have some suggestions.Kindest regardsKennethKenneth HealStorage ConsultantSenet Eindhoven bv> Date: Thu, 19 Jul 2007 07:03:37 -0400> From: jack1729(a)gmail.com> To: mvstew(a)gmail.com> CC: drenthjd(a)wxs.nl; kheal(a)hotmail.com; toasters(a)mathworks.com> Subject: Re: NetApp Thin Provisioning and VMware ESX> > I am new to using esx on nfs. I have create an nfs export but when I > try to mount it from the esx box, it is really slow - it takes 2- 3 > minutes to mount?> > I assume that isn't normal, but I am not sure where to start looking for > problems. I assume it is probably doing something and then waits until > a timeout occurs before proceeding with the mount. I can nfs mount the > same filer / export on another box no problem (i.e. quickly) _________________________________________________________________ Play free games, earn tickets, get cool prizes! Join Live Search Club. http://club.live.com/home.aspx?icid=CLUB_wlmailtextlink

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Lessons Learned - Upgrade to 7.2.2 (i2p)
by Glenn Walker 19 Jul '07

19 Jul '07

While the subject is 'i2p', this isn't an email telling you about the mapping that causes some high utilization, rather it is about the aftermath of the i2p mapping process. I recently performed an upgrade of some of our nearstore systems (used for email compliance, among other things), and was expecting a pretty serious utilization curve while the i2p mapping was performed as part of the upgrade (we upgraded from 7.0.6, not 7.1.X). This came and passed with high utilization of CPU and DISK, but no real issues. However, the i2p mapping apparently keeps the inode-2-path map for every file\inode in the metadata - we have volumes with snaplocked data in the terabytes, the most heavily utilized of which is about 110million files (the 2nd highest utilized is about 82million). As this data has been marked as 'archive' in the Enterprise Vault system, it isn't being written to anymore, so I'm not terribly concerned with the snapmirror update taking a while - however, it is throttled down pretty low as our WAN is not yet up to snuff (coming later this year). Apparently, because i2p touches each inode, we have about 110million*4KB to transfer (~420GB) for the 'update' to our 4.2TB volume. Likewise, the 3.2TB volume with 82million files had about 313GB to transfer. If you have volumes with a significant amount of files, be aware that the snapmirror update after the i2p process completes post-7.2.2 upgrade (or 7.1.1 even, I suppose) will be fairly significant in size. Hope this helps some of you out there so that you are not caught unaware. 'evening Glenn

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toasters July 2007