toasters

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13520 discussions

Thought I'd share
by Glenn Dekhayser 15 Nov '07

15 Nov '07

Had an interesting issue over the weekend at a client, with a happy ending thanks to Netapp support. Client had two aggregates on a 980 controller, one with 144GB drives, one with 300gb drives - each aggr had 1 hot spare, running raid-dp. During the weekend raid scrub, one of the 144gb drives starts popping errors and goes into a predictive failure mode, so the diskcopy starts copying data to the hot 144gb spare. Halfway through this, the predictively bad drive actually fails hard- now it gets interesting. Rather than rebuild the rest of the 144gb hot spare from parity (since it already had much of the data), ontap decided it would abort this diskcopy and pick ANOTHER spare drive to rebuild to- of course the only one left was a 300GB drive, so it picked that one- and instead of right-sizing it down to 144gb, it let it stay at the original size (since you can do that, as Adam Fox reminded us in an earlier post today). So now we had a 144GB aggregate with a single 300GB disk in it, and also, I have no 300GB spares left! Not good. So 1st level support zeroed out the 144gb drive that had the aborted diskcopy on it, and attempted to fail the 300gb drive with a disk fail -f, in order to bring balance back to this world. Didn't work; turns out if there are no spares, you can't do a disk fail on the command line, not even with -f! So the next answer here was to move all the data on the 144GB aggr to another aggr, wipe out the original aggr and rebuild. But of course we didn't have enough space to do that anywhere, so I was going to have to borrow a 300gb shelf from my friendly netapp office to do the trick, and I could see my weekend slowly slipping away. Luckily it didn't come to that; we escalated it up to support. The final answer involved literally yanking the drive, and some other stuff with the disk fail -i command. This started building back to the original 144gb hot spare, and that took care of the issue. The moral of the story - if you end up accidentally recovering to a bigger spare than the rest of your disks in the aggregate, don't despair! Netapp support can help. Also- it's probably a good idea, in mission-critical environments, to have at least TWO hot spares of each size. Glenn (the other one)

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Same aggregate, different size disks?
by Wes Hardin 15 Nov '07

15 Nov '07

Is it possible to have both 144G and 300G disks in the same aggregate, but different raid groups? I can't seem to find any documentation on this. I tried using the ONTAP Simulator to test this, but the simulator seems to have a bug because I was able to add disks of multiple differing sizes to the same raid group (without right sizing them to a common size) and I was even able to add a smaller disk to a raid group of larger disks. -- Wes Hardin

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Aggregate Redirect
by ifstat 15 Nov '07

15 Nov '07

I have an IBM NS3700/FAS270, my problem is that aggr0 and all volume within status is redirect. Aggr1 does not have this problem. developerserverdb online raid_dp, flex nosnap=on, nosnapdir=off, snapmirrored minra=off, no_atime_update=off, read-only nvfail=off, redirect ignore_inconsistent=off, snapmirrored=on, create_ucode=on, ===== SYSCONFIG-R ===== Aggregate aggr0 (online, raid_dp, redirect) (block checksums) Plex /aggr0/plex0 (online, normal, active) RAID group /aggr0/plex0/rg0 (normal) Aggr State Status Options aggr0 online raid_dp, aggr raidsize=14 redirect aggr1 online raid_dp, aggr root, raidsize=14 NO reallocation or wafl process is running. Any Ideas? -- View this message in context: http://www.nabble.com/Aggregate-Redirect-tf4651865.html#a13290692 Sent from the Network Appliance - Toasters mailing list archive at Nabble.com.

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Upgrade firmware, ONTAP and add hardware in one step?
by Stephen C. Losen 14 Nov '07

14 Nov '07

We are adding FC interface cards and new shelves of 750G disks to a FAS960c pair. We need to upgrade ONTAP from 7.1.1.1 to 7.2.3 to support the disks and our system firmware is not the latest. I was wondering if we dare try and do all of this with a single reboot like this: install firmware files and download install ONTAP files and download halt and run update_flash to install firmware power off install interface cards connect new shelves and power them up power up the heads I am concerned that now the filers will come up with new firmware, a new version of ONTAP, and newly installed hardware and disks. Am I asking for trouble? My conservative nature tells me to install the firmware, boot back up, install ONTAP, reboot, shut down, power off, install the new hardware and power back on. It will take only a few more minutes. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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nfs tunneling with SSH
by Willeke, Jochen 14 Nov '07

14 Nov '07

Hi toasters, as we are getting more and more secure we do now have some firewalls within our internal network which prevent us from accessing e.g. installation files or some tool-stuff from central stores on our filers. I have tested a little bit with ssh-tunneling for NFS. With my client this works well, but i have trouble doing this with my filers. Here is what i do: client>> ssh -f -L 7777:filer:2049 -l root nstore2 sysstat 100 client>> ssh -f -L 8888:filer:4046 -l root nstore2 sysstat 100 Where 2049 is the filers nfs port and 4046 ist mountd. On the filer i have exported a volume /vol/test to the filer itself. When i now run client>> mount -t nfs -o tcp,port=7777,mountport=8888 localhost:/vol/test /mnt The client hangs and on the filer i see the message: [openssh.dispatch.protocol:warning]: SSH dispatch failed from address myclientsIP, type 90, packet 10 Has anybody ever tried this or has an idea where my problem is?? Or does anybody know if this is absolutely impossible with filers? Best Regards and thanks in advance Jochen

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Max raid group size on FAS2050 with SAS disks
by Stephen C. Losen 13 Nov '07

13 Nov '07

I went to the NOW System Configuration Guide and it hasn't been published for the FAS2050. I was pointed to another document that lists max raid group sizes for SATA and FC disks, but not SAS. We are getting a 2050 with 20 SAS disks and I want to know if an 18 disk RAID DP raid group is supported. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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RE: Max raid group size on FAS2050 with SAS disks
by Nigam, Mukesh 09 Nov '07

09 Nov '07

Hi Steve, Yes, FAS2050 supports 18 SAS disk RAID-DP raid group. Here is the FAS2000 series Max. raid group sizes including SAS drives: Maximum RAID Group Sizes RAID 6 (RAID-DP(tm)) FC or SAS: 28 (26 data disks plus 2 parity disks) SATA: 16 (14 data disks plus 2 parity disks) RAID 4 FC or SAS: 14 (13 data disks plus 1 parity disk) SATA: 7 (6 data disks plus 1 parity disk) Thanks, Mukesh -----Original Message----- From: Stephen C. Losen [mailto:scl@sasha.acc.virginia.edu] Sent: Friday, November 09, 2007 7:44 AM To: toasters(a)mathworks.com Subject: Max raid group size on FAS2050 with SAS disks I went to the NOW System Configuration Guide and it hasn't been published for the FAS2050. I was pointed to another document that lists max raid group sizes for SATA and FC disks, but not SAS. We are getting a 2050 with 20 SAS disks and I want to know if an 18 disk RAID DP raid group is supported. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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RE: disk busy 100%
by Kevin Parker 09 Nov '07

09 Nov '07

The possibilities are endless given the info provided. Best open a case... Now.netapp.com or 800-4NetApp in the U.S. **Sent using wireless handheld... please excuse any typo's or brevity** Kevin Parker -----Original Message----- From: "No More Linux!" <no.more.linux(a)gmail.com> To: "toasters(a)mathworks.com" <toasters(a)mathworks.com> Sent: 10/22/2007 4:44 PM Subject: disk busy 100% we see this alot on one of our 3050's, the disks are 144gb 10k FCAL, we are very concerned: CPU Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP Disk ops/s in out read write read write age hit time ty util 33% 1633 14262 1967 2934 5948 0 0 5 99% 33% : 100% 40% 2036 13033 1799 12622 5279 0 0 5 99% 27% D 100% 58% 3800 16660 2534 13262 24247 0 0 5 99% 100% : 100% 40% 3271 17156 2268 10978 18927 0 0 5 100% 100% : 100% 30% 1217 9699 1802 7390 24154 0 0 5 99% 100% : 100% 22% 2318 571 2020 8697 21873 0 0 5 93% 100% : 100% 20% 1428 706 2014 7663 21820 0 0 5 94% 100% : 100% 63% 2728 57180 3438 7852 19920 0 0 5 100% 100% : 100% 76% 2787 30640 17043 44909 38679 0 0 5 99% 77% D 100% 72% 1995 20426 20208 41305 35765 0 0 5 98% 100% : 100% 68% 2049 19219 22977 43481 36810 0 0 5 98% 100% : 100% 66% 2234 23097 20839 39816 38096 0 0 5 98% 100% : 100% 63% 2352 23897 27837 35960 16489 0 0 5 99% 55% : 100% 54% 2478 23635 30499 36404 0 0 0 5 99% 0% - 100% 64% 1644 20728 7715 33592 34764 0 0 5 99% 78% D 100% 46% 2901 15620 2120 15486 35537 0 0 5 99% 100% : 100% 42% 3209 13807 1929 18263 34560 0 0 5 99% 100% : 100% 39% 1118 15173 2115 17007 34335 0 0 5 99% 100% : 100% 37% 1111 15072 1830 3434 10154 0 0 5 99% 43% : 100% 24% 1215 14888 1678 1331 0 0 0 5 99% 0% - 100% what could be causing this and how can we alleviate it? ________________________________ Note: This message and any attachments is intended solely for the use of the individual or entity to which it is addressed and may contain information that is non-public, proprietary, legally privileged, confidential, and/or exempt from disclosure. If you are not the intended recipient, you are hereby notified that any use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the original sender immediately by telephone or return email and destroy or delete this message along with any attachments immediately.

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CIFS File Services with local filer authentication
by Roger G 08 Nov '07

08 Nov '07

Hello, I am running Ontap 7.1.2.1 with CIFS, and trying to figure out a way to authenticate users locally using the Filer. I only manage 5-10, so I don't want to use an external Active Directory or NIS. I have followed http://www.netapp.com/library/tr/3358.pdf (CIFS File Services in a DMZ Environment), but couldn't make it work. I have configured authentication mode to Workstation: WinNT, and remove the default user mapping of Unix to Win and Win to Unix. I have also created a new group (using useradmin tool) with a "none" role and added a user to this group. All authentication requests from a Win2003 or WinXP, using the local user have failed. Have anyone setup a Filer to work in a similar configuration ? What am I missing ? Thanks. -- View this message in context: http://www.nabble.com/CIFS-File-Services-with-local-filer-authentication-tf… Sent from the Network Appliance - Toasters mailing list archive at Nabble.com.

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HTTP admin access denied
by Roger G 08 Nov '07

08 Nov '07

Hello, For some reason I can not access the Netapp admin Interface. The server returns with the following errors: Error 503 HTTP is not licensed.To administer this filer, use /na_admin/ . Error 500 Servlets not enabled httpd and httpd.admin are enabled, but something is wrong with the httpd.rootdir and I can't reset it. filer> options httpd httpd.access legacy httpd.admin.access legacy httpd.admin.enable on httpd.admin.hostsequiv.enable off httpd.admin.ssl.enable off httpd.autoindex.enable on httpd.enable on httpd.log.format common httpd.rootdir XXX httpd.timeout 300 httpd.timewait.enable off filer> options httpd.rootdir httpd.rootdir XXX filer> options httpd.rootdir /vol/http warning: httpd.rootdir (/vol/http) not accessible Is there a way to recreate the /vol/http with all of its content in case it was deleted ? Do you have any idea how to solve this? -- View this message in context: http://www.nabble.com/HTTP-admin-access-denied-tf4760881.html#a13615379 Sent from the Network Appliance - Toasters mailing list archive at Nabble.com.

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