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13514 discussions

RE: Filer Drops off the network
by Bond, Andrew 17 Oct '01

17 Oct '01

Robert, Per the system admin guide: Host no buffer: The number of times the driver could not allocate a buffer and a packet is dropped. This might happen when the filer is very busy. If the count increases continually, it might indicate that a software component is not returning buffers. I assume you have a call open, since you have changed the NIC. Please work with the support centre on this. Questions that occur to me are: Which ONTAP release are you running? Is the filer running at very high CPU when the network problem occurs? Are you monitoring the filer with MRTG or similar to see patterns of CPU and network usage? Regards, Andrew > -----Original Message----- > From: Lobban, Robert W SITI-ITDSEP3 > [mailto:Robert.W.Lobban@is.shell.com] > Sent: 17 October 2001 08:17 > To: 'toasters(a)mathworks.com' > Subject: Filer Drops off the network > > > > I am looking for some advice on one of the outputs from the > ifstat command > in ontap. when I run ifstat e4 (Gigabyte II card) I see the following > > RECEIVE > Packets: 36865k | Bytes: 12517m | Errors: > 0 > CRC: 0 | Bad length: 0 | > Undersize: 0 > Fragment: 0 | Oversize: 0 | Jabber: > 0 > FIFO overflow: 0 | NIC no buffer: 0 | Host no > buffer: 65562 > Queue overflow: 0 | Xon: 0 | Xoff: > 0 > Unknown flow ctl: 0 | Broadcast: 48933 | > Multicast: 0 > Jumbo: 0 > TRANSMIT > Packets: 49391k | Bytes: 50119m | Errors: > 0 > Oversize: 0 | Queue overflow: 0 | Timeout: > 0 > Broadcast: 3507 | Multicast: 7 | Jumbo: > 0 > LINK INFO > Auto (learned): off | Media type: 1000sx-fd | Link > state: up > Flow control: full > > The entry I am interested in is the Host no buffer: 65562. > Is this a form > of error?, should I be worried about it. The reason I ask is > that from time > to time our filer drops off the network altogher. Sometimes > it comes back, > sometimes it needs a power off and back on. We have tried > installing a > replacement netword card to no avail. > > Any help or comments would be greatly appreciated.. > > > Robert Lobban > Project Engineer > Shell Information Technology International Limited > Loirston House, Wellington Road, Altens, Aberdeen AB12 3BH > > Tel: +44122421 7577 > Email: Robert.Lobban(a)is.Shell.com > Internet: http://www.shell.com >

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NetApp and EMC Comparisons
by Killion, Brent (ZB7217) 17 Oct '01

17 Oct '01

Fellow Filer Admins- Can anyone point me to any white papers comparing the EMC NAS products with Network Appliance NAS solutions? Specifically, I'm looking for comparisons of ease of use and ease of administration. Thanks.

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RE: Availability of HSM for a Filer?
by White, Lance 17 Oct '01

17 Oct '01

Network Appliance has formed a partnership with Enigma Data Systems for HSM requirements. Check out http://www.enigmadata.com/products.php, their PARS Migrator product works with a Filer. -----Original Message----- From: Dale Wolf [mailto:wolfd@agcs.com] Sent: Wednesday, October 17, 2001 8:29 AM To: toasters(a)mathworks.com Subject: Availability of HSM for a Filer? Is there an HSM solution available for an F840 filer?

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RE: root volume
by Honeycutt, Michael 17 Oct '01

17 Oct '01

You dont need spares to do it. You can copy the /etc directory to another volume and set it as root. Thats what I did to remove 2 drives from vol0. -----Original Message----- From: White, Lance [mailto:Lance.White@netapp.com] Sent: Wednesday, October 17, 2001 11:12 AM To: 'Lane, Debbie'; toasters(a)mathworks.com Subject: RE: root volume Assuming you still have a couple of spares... 1. Create your new root volume on the new drives (let's call it vol1 for this article) 2. Issue the offline command on vol1 3. If running OnTap 5.3.6R2 or lower, reboot the Filer. If running OnTap 6.0 or greater, carry on... 4. Delete the data that you no longer want on vol0 5. Initiate the vol copy command (vol copy start vol0 vol1) 6. Now, make vol1 the root volume (vol options vol1 root) 7. Reboot the Filer to boot from vol1 8. Rename vol0 to mydata (vol rename vol0 mydata) 9. Rename vol1 to vol0 (vol rename vol1 vol0) 10. Reboot 1 last time so all shares & exports get mounted/exported properly 11. Offline mydata, and if running OnTap 6.0 or higher, destroy mydata to put mydata disks back to spare state -----Original Message----- From: Lane, Debbie [mailto:Debbie.Lane@intermec.com] Sent: Wednesday, October 17, 2001 7:59 AM To: toasters(a)mathworks.com Subject: root volume Our filers vol0 contains user data. We are going to be getting rid of about 80GB of this data. We then want to take some of the disk out of vol0 and put them in another volume. What is the best way to go about this? I have limited filer experience. Thanks for your help. --Debbie

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Availability of HSM for a Filer?
by Dale Wolf 17 Oct '01

17 Oct '01

Is there an HSM solution available for an F840 filer?

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RE: hello: CIFS shares and File Sharing Service
by Traitel, Eyal 17 Oct '01

17 Oct '01

Farid, Have you considered our own "options cifs.home_dir" feature? This feature enables you to share automatically, in case you already have home directories that are called like the user. Eyal. You can take a look on the NOW site - <http://now.netapp.com/Knowledgebase/solutionarea.asp?id=3.0.1796496.2595929> I'm also copying here more on the related feature/s - === cifs.home_dir Specifies the location of user home directories. The argument for the option is a comma-separated list of existing directory paths that are searched in order. If no list is supplied, the current list is displayed. The directories under these paths should have the names of users as their names. When a user connects to the filer using CIFS and there is a directory name that exactly matches the user's name, they will see a share with their name. That is their home directory. Only that user can access the home directory using this share. No other user can see that share name since other users are logged in under a different user name. The default value for this option is the null string. To set this option to the default value (a null string), use a pair of double quotes ("") as the argument. cifs.home_dir_namestyle Specifies how the name portion of the path to a user's home directory is determined. If no argument is supplied, the current value of this option is displayed. Valid values for this option are: a null string, ntname, mapped, or domain. All user home directory paths begin with one of the paths given by the cifs.home_dir option, followed by a slash and the user's name. If this option is set to ntname then a user's Windows login name is used and only downward symlinks (in the directory hierarchy) are followed. If the value of this option is mapped then the user's UNIX name is used. The UNIX name is obtained by mapping the user's Windows login name using the file /etc/usermap.cfg. If this option is set to domain then the user's name includes both the user's domain and Windows login name separated by a slash. The default value for this option is the null string, which acts like ntname with the exception that symlinks are followed in any direction. To set this option to the defaul! t value (a null string), use a pair of double quotes ("") as the argument. === ----------------------------------------------------------------- eTraitel - I'm the new eBuzzword around !!! ----------------------------------------------------------------- Get answers NOW! - NetApp On the Web - http://now.netapp.com -----Original Message----- From: Farid Hamjavar [mailto:hamjavar@unm.edu] Sent: Wednesday, October 17, 2001 6:36 AM To: toasters(a)mathworks.com Subject: hello: CIFS shares and File Sharing Service Greetings, We're a fairly large enviromnet (unix). We have been using Netapp for a VERY long time. Authentication is done via unix NIS. Windows plays no role in any aspect of file-system or authentication management. For past several years, we have been creating "CIFS Shares" as a means of "file sharing". We create NIS groups and our users (windows clients) login with their unix login/passwd and share files tamong themselves that way .... I know ... it's very basic. Demand is increasing and we like to do something ... 1. is there any way that we can automate what we do already? i.e. is there a public-domain (or otherwise) software app that can automate our process of creating these "CIFS shares" in somewhat (more or less) they way we do it now? 2. Is there a reliable,reputable vendor (e.g. xdrive.com, of some sort, etc) that we can purchase their software and incorporate it into our existing Netapp infrastructure to implement filesharing (with CIFS or other methods) to offer to our users. Any ideas for any of the above two methods can be very useful and greatly appreciated. Thanks, Farid H. UNM-CIRT

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RE: root volume
by White, Lance 17 Oct '01

17 Oct '01

Assuming you still have a couple of spares... 1. Create your new root volume on the new drives (let's call it vol1 for this article) 2. Issue the offline command on vol1 3. If running OnTap 5.3.6R2 or lower, reboot the Filer. If running OnTap 6.0 or greater, carry on... 4. Delete the data that you no longer want on vol0 5. Initiate the vol copy command (vol copy start vol0 vol1) 6. Now, make vol1 the root volume (vol options vol1 root) 7. Reboot the Filer to boot from vol1 8. Rename vol0 to mydata (vol rename vol0 mydata) 9. Rename vol1 to vol0 (vol rename vol1 vol0) 10. Reboot 1 last time so all shares & exports get mounted/exported properly 11. Offline mydata, and if running OnTap 6.0 or higher, destroy mydata to put mydata disks back to spare state -----Original Message----- From: Lane, Debbie [mailto:Debbie.Lane@intermec.com] Sent: Wednesday, October 17, 2001 7:59 AM To: toasters(a)mathworks.com Subject: root volume Our filers vol0 contains user data. We are going to be getting rid of about 80GB of this data. We then want to take some of the disk out of vol0 and put them in another volume. What is the best way to go about this? I have limited filer experience. Thanks for your help. --Debbie

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root volume
by Lane, Debbie 17 Oct '01

17 Oct '01

Our filers vol0 contains user data. We are going to be getting rid of about 80GB of this data. We then want to take some of the disk out of vol0 and put them in another volume. What is the best way to go about this? I have limited filer experience. Thanks for your help. --Debbie

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RE: Filer Drops off the network
by Mike Ball 17 Oct '01

17 Oct '01

Robert, Can you elaborate on what you mean by dropping? Are you losing connectivity from the client side? If so, what OS are you running? What type of switch are you plugging the Gigabit interface into from the Netapp end? What are the settings on the port on the switch? Mike -----Original Message----- From: Lobban, Robert W SITI-ITDSEP3 [mailto:Robert.W.Lobban@is.shell.com] Sent: Wednesday, October 17, 2001 3:17 AM To: 'toasters(a)mathworks.com' Subject: Filer Drops off the network I am looking for some advice on one of the outputs from the ifstat command in ontap. when I run ifstat e4 (Gigabyte II card) I see the following RECEIVE Packets: 36865k | Bytes: 12517m | Errors: 0 CRC: 0 | Bad length: 0 | Undersize: 0 Fragment: 0 | Oversize: 0 | Jabber: 0 FIFO overflow: 0 | NIC no buffer: 0 | Host no buffer: 65562 Queue overflow: 0 | Xon: 0 | Xoff: 0 Unknown flow ctl: 0 | Broadcast: 48933 | Multicast: 0 Jumbo: 0 TRANSMIT Packets: 49391k | Bytes: 50119m | Errors: 0 Oversize: 0 | Queue overflow: 0 | Timeout: 0 Broadcast: 3507 | Multicast: 7 | Jumbo: 0 LINK INFO Auto (learned): off | Media type: 1000sx-fd | Link state: up Flow control: full The entry I am interested in is the Host no buffer: 65562. Is this a form of error?, should I be worried about it. The reason I ask is that from time to time our filer drops off the network altogher. Sometimes it comes back, sometimes it needs a power off and back on. We have tried installing a replacement netword card to no avail. Any help or comments would be greatly appreciated.. Robert Lobban Project Engineer Shell Information Technology International Limited Loirston House, Wellington Road, Altens, Aberdeen AB12 3BH Tel: +44122421 7577 Email: Robert.Lobban(a)is.Shell.com Internet: http://www.shell.com

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Filer Drops off the network
by Lobban, Robert W SITI-ITDSEP3 17 Oct '01

17 Oct '01

I am looking for some advice on one of the outputs from the ifstat command in ontap. when I run ifstat e4 (Gigabyte II card) I see the following RECEIVE Packets: 36865k | Bytes: 12517m | Errors: 0 CRC: 0 | Bad length: 0 | Undersize: 0 Fragment: 0 | Oversize: 0 | Jabber: 0 FIFO overflow: 0 | NIC no buffer: 0 | Host no buffer: 65562 Queue overflow: 0 | Xon: 0 | Xoff: 0 Unknown flow ctl: 0 | Broadcast: 48933 | Multicast: 0 Jumbo: 0 TRANSMIT Packets: 49391k | Bytes: 50119m | Errors: 0 Oversize: 0 | Queue overflow: 0 | Timeout: 0 Broadcast: 3507 | Multicast: 7 | Jumbo: 0 LINK INFO Auto (learned): off | Media type: 1000sx-fd | Link state: up Flow control: full The entry I am interested in is the Host no buffer: 65562. Is this a form of error?, should I be worried about it. The reason I ask is that from time to time our filer drops off the network altogher. Sometimes it comes back, sometimes it needs a power off and back on. We have tried installing a replacement netword card to no avail. Any help or comments would be greatly appreciated.. Robert Lobban Project Engineer Shell Information Technology International Limited Loirston House, Wellington Road, Altens, Aberdeen AB12 3BH Tel: +44122421 7577 Email: Robert.Lobban(a)is.Shell.com Internet: http://www.shell.com

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