toasters October 2002

toasters@lists.teaparty.net

69 participants
84 discussions

RE: Replacing a SCSI cable
by Link, Bill (OTS-EDH) 11 Oct '02

11 Oct '02

It's more or less "safe" if you are dealing with passive (differential) interfaces. If dealing with active (single-ended) interface I like to be sure that the device with the far end terminator is powered down. In any case, all the devices in the string have to be idle when you break the chain. SCSI controllers get most upset when they lose sight of their terminator while a bus transaction is taking place. Bill Link SysAdmin, DSTOutput inc. and Old Hardware Guy bill_link(a)billing.com -----Original Message----- From: Mike Sphar [mailto:mike.sphar@Remedy.COM] Sent: Friday, October 11, 2002 7:44 AM To: toasters(a)mathworks.com Subject: RE: Replacing a SCSI cable Is that really safe? I was always taught never to connect or disconnect a SCSI cable on a powered-up system due to the possibility of damaging the SCSI controller, and I've actually seen that happen on a sparcstation once. Do the netapps and the tape drives have some additional technology that allows hot-swapping the scsi cable? -- Mike Sphar - Sr Systems Administrator - Remedy Corporation -----Original Message----- From: Mike Ball [mailto:MBall@datalink.com] Sent: Friday, October 11, 2002 7:36 AM To: 'igor(a)txc.com'; toasters(a)mathworks.com Subject: RE: Replacing a SCSI cable Igor, You can hot swap the cable. I would sure no backup jobs are running on the Netapp and if you are using NDMP make sure you turn it off (ndmpd off) before swapping cables. It should work fine. Mike -----Original Message----- From: Igor Schein [mailto:igor@txc.com] Sent: Wednesday, October 09, 2002 6:05 PM To: toasters(a)mathworks.com Subject: Replacing a SCSI cable Hi, what is the current recommendation as far as replacing a SCSI cable connecting the filer and the tape library? Does filer need to be rebooted, or is it safe to hot-swap the cable? Thanks Igor Notice: This e-mail and any attachments are intended only for the individual or company to which it is addressed and may contain information which is privileged, confidential and prohibited from disclosure or unauthorized use under applicable law. If you are not the intended recipient of this e-mail, you are hereby notified that any use, dissemination, or copying of this e-mail or the information contained in this e-mail is strictly prohibited by the sender. If you have received this transmission in error, please return the material received to the sender and delete all copies from your system. Thank you.

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verifying that snap is turned off
by Daniel Finn 11 Oct '02

11 Oct '02

How can I do this?

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RE: Replacing a SCSI cable
by Mike Ball 11 Oct '02

11 Oct '02

As long as there is no signal (ex- scanning SCSI card or Tape I/O) going down the SCSI line while the cables are being swapped I have never had a issue. It is nothing special about the Netapp. -----Original Message----- From: Mike Sphar [mailto:mike.sphar@Remedy.COM] Sent: Friday, October 11, 2002 10:44 AM To: toasters(a)mathworks.com Subject: RE: Replacing a SCSI cable Is that really safe? I was always taught never to connect or disconnect a SCSI cable on a powered-up system due to the possibility of damaging the SCSI controller, and I've actually seen that happen on a sparcstation once. Do the netapps and the tape drives have some additional technology that allows hot-swapping the scsi cable? -- Mike Sphar - Sr Systems Administrator - Remedy Corporation -----Original Message----- From: Mike Ball [mailto:MBall@datalink.com] Sent: Friday, October 11, 2002 7:36 AM To: 'igor(a)txc.com'; toasters(a)mathworks.com Subject: RE: Replacing a SCSI cable Igor, You can hot swap the cable. I would sure no backup jobs are running on the Netapp and if you are using NDMP make sure you turn it off (ndmpd off) before swapping cables. It should work fine. Mike -----Original Message----- From: Igor Schein [mailto:igor@txc.com] Sent: Wednesday, October 09, 2002 6:05 PM To: toasters(a)mathworks.com Subject: Replacing a SCSI cable Hi, what is the current recommendation as far as replacing a SCSI cable connecting the filer and the tape library? Does filer need to be rebooted, or is it safe to hot-swap the cable? Thanks Igor

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RE: rateup from filer-mrtg.tar.gz from Netapp core dumps under li nux
by Daniel Finn 11 Oct '02

11 Oct '02

Thanks for the help. I put your rateup in place and I'm still getting errors. Although they aren't very helpful to me: [root@sadqalx38 mrtg-bin]# /var/www/html/netapps/bin/mrtg-filer-stats.sh na1m-be.studentadvantage.com password + SERVER=na1m-be.studentadvantage.com + PORT=password + USER= + PASSWD= + MRTG_HOME=/var/www/html/netapps/mrtg-bin + MRTG_BIN=/var/www/html/netapps/mrtg-bin + FILER_STATS_HOME=/var/www/html/netapps + BASE_WORKDIR=/var/www/html/netapps/monitor + CONF=/var/www/html/netapps/conf/na1m-be.studentadvantage.com.cfg + INDEX_FILE=/var/www/html/netapps/monitor/na1m-be.studentadvantage.com/index. html + TITLE=Filer statistics for 'na1m-be.studentadvantage.com' + REGEX=na1m-be.studentadvantage.com + /var/www/html/netapps/bin/retrieve-filer.sh na1m-be.studentadvantage.com + SERVER=na1m-be.studentadvantage.com + FILER_ASCII_PORT= + USERNAME= + PASSWD= + FILER_STATS_HOME=/var/www/html/netapps + PATH=/bin:/usr/bin:/usr/local/bin:/opt/gnu/bin:/var/www/html/netapps/bin: + export PATH + DATA_FILE=/var/www/html/netapps/data/retrieve-filer-na1m-be.studentadvantage .com.dat + GNU_EGREP= + RCMD=rsh + echo Name: na1m-be.studentadvantage.com + retrieve-cpu.pl na1m-be.studentadvantage.com + /var/www/html/netapps/mrtg-bin/mrtg /var/www/html/netapps/conf/na1m-be.studentadvantage.com.cfg PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.net.snmp' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.nfs.snmp' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.cpu' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.cifs.snmp' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.cifsothers.snmp' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.net.interface1' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.net.interface2' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.net.interface3' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.net.interface4' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.net.interface5' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.df.vol1' If this happens all the time, you should probably investigate the cause. :-) PROBLEM: rateup died from Signal 8 with Exit Value 0 when doing router 'na1m-be.studentadvantage.com.df.vol0' If this happens all the time, you should probably investigate the cause. :-) + /var/www/html/netapps/mrtg-bin/indexmaker /var/www/html/netapps/conf/na1m-be.studentadvantage.com.cfg Filer statistics for 'na1m-be.studentadvantage.com' na1m-be.studentadvantage.com + exit 0 any ideas what Signal 8 is. The binary itself runs, which is better than before. [root@sadqalx38 mrtg-bin]# ./rateup ./rateup for mrtg 2.9.4 Usage: ./rateup directory basename [sampletime] [t sampletime] [-(t)ransparent] [u|a|g|h|m in out abs_max] [i/p file maxvi maxvo maxx maxy growright step bits] any other ideas as to what the problem could be? Thanks Dan -----Original Message----- From: Crass, Kevin To: 'Daniel Finn' Sent: 10/10/02 6:08 PM Subject: RE: rateup from filer-mrtg.tar.gz from Netapp core dumps under li nux Dan, I created one for Linux for a laptop project I was working on. You can take it from my distribution attached. Regards, Kevin Crass Network Appliance, Inc. Professional Services Engineer -----Original Message----- From: Daniel Finn [mailto:DFinn@studentadvantage.com] Sent: Thursday, October 10, 2002 4:31 PM To: 'toasters(a)mathworks.com' Subject: rateup from filer-mrtg.tar.gz from Netapp core dumps under linux Did anybody else have problems with this? It runs fine on a Solaris9 server but when I tried to install it on one of our linux utility servers here the rateup program would core dump. It's RedHat 6.2 running kernel 2.2.19-6.2.1smp, i686.. I would prefer to run it on the linux server so any help would be really appreciated. Thanks Dan <<mrtg.tar.Z>>

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RE: Replacing a SCSI cable
by Mike Sphar 11 Oct '02

11 Oct '02

Is that really safe? I was always taught never to connect or disconnect a SCSI cable on a powered-up system due to the possibility of damaging the SCSI controller, and I've actually seen that happen on a sparcstation once. Do the netapps and the tape drives have some additional technology that allows hot-swapping the scsi cable? -- Mike Sphar - Sr Systems Administrator - Remedy Corporation -----Original Message----- From: Mike Ball [mailto:MBall@datalink.com] Sent: Friday, October 11, 2002 7:36 AM To: 'igor(a)txc.com'; toasters(a)mathworks.com Subject: RE: Replacing a SCSI cable Igor, You can hot swap the cable. I would sure no backup jobs are running on the Netapp and if you are using NDMP make sure you turn it off (ndmpd off) before swapping cables. It should work fine. Mike -----Original Message----- From: Igor Schein [mailto:igor@txc.com] Sent: Wednesday, October 09, 2002 6:05 PM To: toasters(a)mathworks.com Subject: Replacing a SCSI cable Hi, what is the current recommendation as far as replacing a SCSI cable connecting the filer and the tape library? Does filer need to be rebooted, or is it safe to hot-swap the cable? Thanks Igor

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RE: Replacing a SCSI cable
by Mike Ball 11 Oct '02

11 Oct '02

Igor, You can hot swap the cable. I would sure no backup jobs are running on the Netapp and if you are using NDMP make sure you turn it off (ndmpd off) before swapping cables. It should work fine. Mike -----Original Message----- From: Igor Schein [mailto:igor@txc.com] Sent: Wednesday, October 09, 2002 6:05 PM To: toasters(a)mathworks.com Subject: Replacing a SCSI cable Hi, what is the current recommendation as far as replacing a SCSI cable connecting the filer and the tape library? Does filer need to be rebooted, or is it safe to hot-swap the cable? Thanks Igor

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Re: Hello - new (old) F630 owner
by mds＠gbnet.net 11 Oct '02

11 Oct '02

The key is the converter frob to allow a DIFF card to drive SE disks. Change card, change disks (and shelf) or get the converter frob. -- -Mark ... an Englishman in London ...

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rateup from filer-mrtg.tar.gz from Netapp core dumps under linux
by Daniel Finn 10 Oct '02

10 Oct '02

Did anybody else have problems with this? It runs fine on a Solaris9 server but when I tried to install it on one of our linux utility servers here the rateup program would core dump. It's RedHat 6.2 running kernel 2.2.19-6.2.1smp, i686.. I would prefer to run it on the linux server so any help would be really appreciated. Thanks Dan

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Two patches for netapp-top.pl
by Daniel Scheibli 10 Oct '02

10 Oct '02

Dear list, I have done two small patches for the netapp-top.pl script (http://now.netapp.com/NOW/download/tools/ntaptop/), which can be found at (http://www.edelbyte.org/html/s05c000m.htm in the patches section). The first one fixes an error when displaying hostsnames which can not be resolved, the other one limits the interval recalculation to more relevant cases. Hope you like it Daniel -- +++ GMX - Mail, Messaging & more http://www.gmx.net +++ NEU: Mit GMX ins Internet. Rund um die Uhr für 1 ct/ Min. surfen!

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Re: bringing up a new eth interface on a pci nic card. some question s
by Rune Bakken 10 Oct '02

10 Oct '02

Daniel Finn <DFinn(a)studentadvantage.com> writes: > I'm trying to bring up a new interface on a pci nic card inside my F740. > Without being at the netapp is there any way to see if the nic card is > seeing a good link status. Here's what I have: > > na4m-be> ifconfig -a > e0: flags=200043<UP,BROADCAST,RUNNING> mtu 1500 > inet 10.209.68.211 netmask 0xffffff00 broadcast 10.209.68.255 > ether 00:a0:98:00:52:76 (100tx-fd-up) > e2a: flags=200043<UP,BROADCAST,RUNNING> mtu 1500 > inet 10.221.88.41 netmask 0xfffffff0 broadcast 10.221.88.47 > ether 00:20:fc:1e:20:cc (auto-100tx-up) This port has link > e3a: flags=42<BROADCAST,RUNNING> mtu 1500 > inet 10.221.88.41 netmask 0xfffffff0 broadcast 10.221.88.47 > ether 00:c0:95:e0:f4:00 (auto--down) This doesn't > Is there any type of command such as snoop for > Solaris or tcpdump for linux where I can see raw network traffic? pktt > My other question is how can I force this link to 100FDX. It's cisco gear > on the other side and I know that cisco stuff generally has trouble > auto-negotiating. ifconfig e2a mediatype 100tx-fd You would want to have the cisco side set to the same >>>>>>>>>>>>.rune -- Rune Bakken Senior System Administrator Telenor Business Solutions (Nextra), Communications/IP-Services Ph: +47 22 77 03 93

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toasters October 2002