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13520 discussions

Netapp monitoring - OOIDs in 1.3.6.1.4.1.789.1.5 (filesys).
by Rafał Radecki 22 Feb '13

22 Feb '13

Hi All. I am using NetApp Release 8.0.2P4 7-Mode in active/active mode. I am monitoring it with snmp and Cacti. Yesterday I've performed takeover, sp reboot and giveback. During this process OIDS from 1.3.6.1.4.1.789.1.5 have changed for volumes. I have no list from before the change so I cannot compare but I see in the graphs that volumes are available under different OIDs. Have someone had such problems when restarting netapp/performing takeover giveback? Best regards, Rafal Radecki.

4 3

Adding a vlan but preserving base interface's IP
by Ray Van Dolson 22 Feb '13

22 Feb '13

ONTAP 7.3.6. This is a FAS2050C (IBM N3600 A20) that has a SAS expansion card in each controller. As such, we're limited to only the two onboard GigE ports. e0a and e0b both go to different physical switches and suck in two different networks, so we can't vif 'em together easily. I have a need to introduce a vlan interface to e0a and am wondering if it's possible to do so non-disruptively and preserve access to the e0a via the untagged traffic on the network. Both interfaces are configured with 'nfo'. I've found conflicting information on this.... some say you can mix untagged on your e0a interface and tagged traffic on e0a-vlan## just fine. Others say it's not doable and I'll need to get my network guys to tag all the traffic and move my e0a to a vlan interface. Not sure I'm seeing a way to do this without some downtime... even if I do a cluster failover, I don't see how a failback would work if I've mucked with the interfaces. Thanks, Ray

2 1

NDMP speed question
by Christopher S Eno 21 Feb '13

21 Feb '13

Hi, In testing NDMP dumps over 10GbE, I am seeing it max out at 1.5Gb/s. Some here are thinking that NDMP should be using more of that pipe. Anyone know about, or have numbers of NDMP transfer rates over 10GbE? Any caps or thresholds in OnTap that keep NDMP from gobbling up resources on the controller? I have run tests over the 10GbE connection from controller to controller, 10k drives to 10k drives, sata drives to sata drives, and always 1.5Gb/s is the ceiling. FTP'ing data from server to server across the same 10GbE network shows rates of 2.5Gb/s or higher. My NDMP options: ndmpd.access all ndmpd.authtype challenge ndmpd.connectlog.enabled off ndmpd.data_port_range all ndmpd.enable on ndmpd.fh_node_retry_interval 250 ndmpd.ignore_ctime.enabled off ndmpd.maxversion 4 ndmpd.offset_map.enable on ndmpd.password_length 16 ndmpd.preferred_interface e1a (value might be overwritten in takeover) ndmpd.tcpnodelay.enable on ndmpd.tcpwinsize 65534 IF e1a configuration: e1a: flags=0x5f4e867<UP,BROADCAST,RUNNING,MULTICAST,TCPCKSUM,NOWINS> mtu 1500 inet x.x.x.x netmask 0xffffff00 broadcast x.x.x.x partner e1a (not in use) ether 00:07:43:08:98:ae (auto-10g_sr-fd-up) flowcontrol none

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Mixed CIFS/NFS Access and issues w/ Locking
by Ray Van Dolson 21 Feb '13

21 Feb '13

We have an ONTAP 8.0.x filer here serving out a volume with an NTFS qtree via both CIFS and NFS. We're encountering the following situation: 1. An OSX user browses to the path via CIFS in Finder and then walks away/moves on to another task leaving the Finder window open on the path. - This generates a mandatory read lock on the folder (verified via lock status): CIFS path=\path(/path) host=10.28.102.30() owner=njarecha state=GRANTED mode=Read-denyN oplock=None 2. An NFS client comes along now (automated build process) and attempts delete the same folder. This appears to succeed from the NFS client's perspective. - We now see the following: CIFS path=\path(/path) host=10.28.102.30() owner=njarecha state=GRANTED mode=Read-denyN oplock=None CIFS path=\path(-) host= owner= state=GWAITING mode=DelOnClose At this point, CIFS access to the path now is completely blocked. No one can navigate into the folder, nor view its ACLs (save likely for the OSX client still holding the read lock). NFS clients can continue to access the contents of the folder (both read/write), but rmdir/rm operations on the folder itself fail with Permission denied. The fix is to (a) close the Finder window or (b) clear the lock via 'lock break' on the filer. I'll note that Windows Explorer doesn't appear to open a read lock when you only browse to a path -- not sure why Finder does. We're looking for options here, but first I'm wondering if the filer's response here isn't ideal. Rather than completing closing off access to CIFS clients, shouldn't #2 above just fail from the get-go rather than generating the DelOnClose queued event (if a mandatory read lock exists on the resource)? Other options we're considering: - Modifying automated processes to avoid the "rmdir" command. - Sticking with only one access protocol (likely CIFS). - Modifying OSX Finder behavior to not generate and hold a CIFS read lock (not sure how easy this would be to do). - Finding some sort of tunable on the ONTAP side to minimize impact (e.g. ignore the read lock and let the NFS rmdir operation to succeed) at the potential elevated risk of reduced data integrity. Anyone have any thoughts/experiences with something similar? Thanks, Ray

3 4

can't shoot SSH commands to a filer
by Randy Rue 20 Feb '13

20 Feb '13

Hello All, I have a 3020 running 7.2.4 that is failing to respond to SSH commands when they're sent one at a time. I can ssh in as root and get a shell via putty or ssh. But if I try to send an "uptime" command I get either "FATAL ERROR: Server unexpectedly closed network connection" (from plink) or "Connection to carbon-b closed by remote host." from ssh. Also, when I'm logged in interactively, I see lots of this blowing across the console: carbon-b> receive signals: rsh protocol failure in circuit setup. 300 received receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received receive signals: rsh protocol failure in circuit setup. 300 received receive signals: rsh protocol failure in circuit setup. 300 received receive signals: rsh protocol failure in circuit setup. 300 received receive signals: rsh protocol failure in circuit setup. 300 received Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. Try again. Try again. Try again. Try again. Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. Try again. Try again. Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. Try again. Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received Try again. Try again. Try again. Try again. Try again. Try again. receive signals: rsh protocol failure in circuit setup. 300 received We have lots of processes (monitoring, alerting, scripted processes) that touch this box via non-interactive SSH, is each of these errors some failed attempt to connect? If I understand the inner workings correctly, pretty much all admin traffic on a filer channels into an internal RSH pipe. Are there different pipes for interactive and non-interactive SSH? I have tried stopping and restarting SSH (options ssh.enable off and on). Also RSH (options rsh.enable off and on). No love. Anyone have any ideas? Randy Seattle

2 2

Migration of Oncommand Host services
by KICKEN Ben (INT/TEI) 15 Feb '13

15 Feb '13

Greetings toasters, I am looking for migration procedures for the Oncommand Host Services, installed on the DFM/OCUM server (which is a VM) to the vCenter server (also a VM), without losing all configured datasets, protection and provisioning policies which Snapvault primary data to secondary storage. I was thinking of installing Host Package 1.2 on vCenter server and authorize it on the OCUM host - which will present all Vmware objects twice in the OC COnsole. Next unregister the OCUM hostservice (dfm hs unregister). Will all abovementioned datasets and policies still be available and active, on the hostservice running on the vCenter Host? Unfortunately I have no test environment for simulating this before doing this in real life; asked this in Communities and created a case at netapp support, but no good suggestions yet. thanks for any input Ben

2 1

Live disk shelf removal.
by Jeff Cleverley 13 Feb '13

13 Feb '13

Greetings, Is there a way to remove DS14 MK4 shelves from a running cluster? I need to look into isolating some drives and removing some shelves and would like to do it without having to halt the cluster. This is a 7.3.5.1 Ontap cluster on FAS6080s. Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

6 6

HTTP & CFO
by Ray Van Dolson 13 Feb '13

13 Feb '13

ONTAP 8.0.x with httpd.enable set and virtual hosting configured via httpd.hostprefixes. Our PRD filer in question has two controllers in CFO mode which works fine for NFS/CIFS services. Will the HTTP services fail over properly as well? Tried to test this with the ONTAP 8.0.4 simulator, but you can't test CFO there apparently. Am especially curious about the httpd.hostprefixes settings and if they'll fail over gracefully. Thanks, Ray

1 0

can't touch a CIFS folder?
by Randy Rue 12 Feb '13

12 Feb '13

Hello All, Got a subfolder on a CIFS only vfiler (NTFS qtree) that I can't open, delete or rename, even though I'm connected as a user that's a member of the local administrators for the vfiler. From a windows host if I right-click the folder and choose properties there isn't even a permissions tab. Can't seize ownership. Can't open the folder (denied). >From a cifs-mounted linux host I also strike out but with odd errors. [root@host]# mv _DIVA\ templates delete mv: cannot stat `_DIVA templates': No such file or directory [root@host]# ls _DIVA templates [root@host]# ls -al total 24 drwxrwxrwx 3 root root 0 Feb 11 21:07 . drwxrwxrwx 28 root root 0 Jan 28 12:23 .. ?--------- ? ? ? ? ? _DIVA templates [root@host]# Note that the folder is called "_DIVA templates" I've tried copying and pasting it a few different ways to see if maybe it had funky/non-printable characters in the name but it doesn't appear so. Any ideas? Randy Rue Seattle WA

5 6

6080 heads with 6040 NVRAM cards.
by Jeff Cleverley 12 Feb '13

12 Feb '13

Greetings, I'm thinking about doing something that is not supported and was wondering if anyone had done the same or has more detailed insight. We have a very busy cluster (6040s 7.3.5.1P4). It looks like we are largely maxing out the heads for CPU. We are getting a pair of 6080s and really need to try and do the head swap live (takeover / giveback) if at all possible. The unsupported part I want to do is keep the 6040 NVRAM cards and put them in the 6080s as I swap them. The reason for this is I would not have to change the system ID ownership on all the drives. I know changing the system ID is generally not a big deal by booting each head to maintenance mode and reassigning the old SID to the new SID. In our case it worries me. Last week we were going to move a project to the other head by reassigning the appropriate drives for a couple of aggregates. While trying to reassign these the SAS buses started panic'ing and crashed the controlling filer. The entire cluster was down. The ensuing mess took several hours to clean up. If it crashed while trying to change ownership of a few drives, I'm afraid of what will happen when it tries to reassign all the old SID drives for the new NVRAM card. I was hoping if we could keep the cards, we could swap heads, not change SIDs, and minimize our chance of repeating the crash. I could do the disks one at a time, but I have 796 drives on this cluster and would rather not. Is there a requirement for the hardware to have the bigger memory cards? Since there are more CPUs, I can see where maybe something needs it, I just don't know what. We will probably have a downtime in a couple of months where I can put the correct ones back in. Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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