toasters March 2000

toasters@lists.teaparty.net

125 participants
147 discussions

Filer showing held locks
by Stephen C. Woods 09 Mar '00

09 Mar '00

Is it possable to see file locks on a filer? That is to say, 'Is there an equivalent to lslk?'. ----- Stephen C. Woods; UCLA SEASnet; 2567 Boelter hall; LA CA 90095; (310)-825-8614 Finger for public key scw(a)cirrus.seas.ucla.edu,Internet mail:scw@SEAS.UCLA.EDU

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Re: Tape Drives
by Timothy A. McCarthy 09 Mar '00

09 Mar '00

I would suspect, as most tape libraries do, you can get the info from the LCD console of the library, something like FW info? I am guessing here, maybe someone with a Q47 can chime in with some specifics? --tmac Mark D Fowle wrote: > How do I determine the firmware level of the Q47 ? > > tmac(a)netapp.com on 03/08/2000 12:50:00 PM > > To: Fowle_Mark_D@cat.com@INTERNET > cc: toasters@mathworks.com@INTERNET (bcc: Mark D. Fowle/0V/Caterpillar) > Subject: Re: Tape Drives > Retain Until: 04/07/2000 Retention Category: G90 - Information and > Reports > > Yeah, I know a government customer who does. > > Word of caution: > > If the Q47 is somewhat dated, you should upgrade the firmware > in the library. There is a bug in their firmware that prevents a filer > running 5.3 and later from booting. The Q47 firmware in question > is version 4.41. Moving to anything later than that will be fine, > like 4.43 & 4.53. > > --tmac > > Mark D Fowle wrote: > > > I have a Breece Hill Q-47 tape library, and I was wondering if anyone has a > > library similar to this attached to the netapps ? > > > > Mark Fowle > > Caterpillar

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RE: Problem in ownerships
by Fox, Adam 08 Mar '00

08 Mar '00

> > > > -----Original Message----- > > > From: Andrew Bond [mailto:andrewb@netapp.com] On Behalf Of > > > Bond, Andrew > > > Sent: 08 March 2000 13:25 > > > To: 'Krzysztof Miller' > > > Subject: RE: Problem in ownerships > > > > > > > > > Actually, that's a good point - is the option > > > wafl.root_only_chown set to "on"? > > > > This is the default so you may want to check it. If you turn it > off, the owner should be able to chown a file that he owns. > Also, I seem to remember that some older BSD-based UNIX's (like SunOS 4) have the chown command check the effective UID of the process and if it's not 0, it command errors out before you it even talks to the filesystem, local or NFS. Again, something else to check. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com

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RE: Problem in ownerships
by Fox, Adam 08 Mar '00

08 Mar '00

> > -----Original Message----- > > From: Andrew Bond [mailto:andrewb@netapp.com] On Behalf Of > > Bond, Andrew > > Sent: 08 March 2000 13:25 > > To: 'Krzysztof Miller' > > Subject: RE: Problem in ownerships > > > > > > Actually, that's a good point - is the option > > wafl.root_only_chown set to "on"? > This is the default so you may want to check it. If you turn it off, the owner should be able to chown a file that he owns. Hope this helps. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com

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Re: differential to single-ended
by Graydon Dodson 08 Mar '00

08 Mar '00

> Q: I need to be able to connect the new F760 to the existing tape > library. Does anyone know if there is a host adapter (fast/wide) that > I can plug into the F760? If not, then my second thought was a passive > differential to single-ended adapter. Does anyone have any experience > with that? The backup software is NetBackup. We are using a converter made by "Paralan" to connect an F630 (FW single ended) to a tape robot (FW diff.) The unit is active (has a power cord) but has worked so well we often forget it's there. Graydon Dodson grdodson(a)lexmark.com Lexmark International Inc.

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Graphing write volume?
by Brian Hostetter 08 Mar '00

08 Mar '00

I have installed filer-mrtg, which has almost all the information I need. The only thing I need now is to know how much bandwidth would be needed to mirror our 740 across a wan link. Since it should it is a mirror we should only need to know the amount of nfs writes. Also in filer-mrtg the Network K sent/recv seems really really low. It is showing us at 5.2KB/s? But when I graph something like 1:public@netapp I get about 30Mbps, Big difference. I tried to graph mib number ...789.1.3.1.3.1.1.34.1 but that gives me a 0. Ideas? --Brian

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differential to single-ended
by George Kahler 08 Mar '00

08 Mar '00

Hi, I finally received a new F760 filer but failed to realize that the built-in tape interface will be differential. All of my current filers have dedicated ADIC 224 libraries with DLT7000 fast/wide tape drives. Q: I need to be able to connect the new F760 to the existing tape library. Does anyone know if there is a host adapter (fast/wide) that I can plug into the F760? If not, then my second thought was a passive differential to single-ended adapter. Does anyone have any experience with that? The backup software is NetBackup. Thanks, George ------------------------------------------------------------------------------- George Kahler e-mail: george(a)yorku.ca Sr. Systems Administrator humans: (416) 736-2100 x.22699 Computing and Network Services machines: (416) 736-5830 Ontario, Canada, M3J-1P3

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Re: Tape Drives
by Mark D Fowle 08 Mar '00

08 Mar '00

How do I determine the firmware level of the Q47 ? tmac(a)netapp.com on 03/08/2000 12:50:00 PM To: Fowle_Mark_D@cat.com@INTERNET cc: toasters@mathworks.com@INTERNET (bcc: Mark D. Fowle/0V/Caterpillar) Subject: Re: Tape Drives Retain Until: 04/07/2000 Retention Category: G90 - Information and Reports Yeah, I know a government customer who does. Word of caution: If the Q47 is somewhat dated, you should upgrade the firmware in the library. There is a bug in their firmware that prevents a filer running 5.3 and later from booting. The Q47 firmware in question is version 4.41. Moving to anything later than that will be fine, like 4.43 & 4.53. --tmac Mark D Fowle wrote: > I have a Breece Hill Q-47 tape library, and I was wondering if anyone has a > library similar to this attached to the netapps ? > > Mark Fowle > Caterpillar

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RE: Problem in ownerships
by Muhlestein, Mark 08 Mar '00

08 Mar '00

It's kind of a fuzzy distinction, since you are trying to satisfy a diverse set of applications, but in general, EPERM ("Operation not permitted") is used to bounce attempts to do things that don't work because you're not the right UID/GID, whereas EACCESS ("Permission denied") is used when the object in question does not grant you access. In the case of NTFS qtrees, I think you could argue it either way, but to me it feels more like you're the "wrong user" than "this object denies access". We have plans to allow users from UNIX clients to manage NT ACLs on the filer, which would allow you to see what is going on in cases like this. In the meantime, now that the Samba team has published the necessary DCE/RPC info to do this*, there's nothing stopping some enterprising third party from providing such a command. Any takers? :-) Mark Muhlestein -- mmm(a)netapp.com *See Luke Leighton's book _DCE/RPC over SMB: Samba and Windows NT Domain Internals_ from Macmillan Technical Publishing. The Samba "rpcclient" utility gets you 95% of the way there. If anyone seriously wants to try this, let me know. -----Original Message----- From: Bruce Sterling Woodcock [mailto:sirbruce@ix.netcom.com] Sent: Wednesday, March 08, 2000 4:11 AM To: Bond, Andrew; bhaskar.g(a)philips.com; toasters(a)mathworks.com Subject: Re: Problem in ownerships ----- Original Message ----- From: Bond, Andrew <abond(a)netapp.com> To: <bhaskar.g(a)philips.com>; <toasters(a)mathworks.com> Sent: Wednesday, March 08, 2000 3:42 AM Subject: RE: Problem in ownerships > I'd take a quess that the file is on a qtree (or volume) with NTFS security. > This is expected behaviour in that situation. Good point. I would have expected a different error message (EACCES rather than EPERM), but it appears that chown(2) and utimes(2) may interpret those very strictly, and assume that EPERM must mean that you are not the owner if you're not root, rather than simply being denied write access. They don't seem to consider the possibility of being denied write access even when the times argument is non-NULL. Still, wouldn't it be more appropriate for the filer to return NFS[3]ERR_ACCES instead of NFS[3]ERR_PERM in those situations? Bruce

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Re: Tape Drives
by Graham C. Knight 08 Mar '00

08 Mar '00

Mark D Fowle wrote: > > I have a Breece Hill Q-47 tape library, and I was wondering if anyone has a > library similar to this attached to the netapps ? > > Mark Fowle > Caterpillar We have 4 or 5 of them attached to netapps, and have a sun server driving the robots. These libraries were a purchasing mistake. They aren't the most reliable on the market - that's putting it lightly. Graham

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toasters March 2000