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13520 discussions

WAFL metadata files
by Sebastien Campion 23 Oct '07

23 Oct '07

The WAFL file system store metadata in files, three files : - inode file - block-map file - inode map Is it possible to copy this files ? I would like to make precises stats on this file system. Thanks in advance, Séb.

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Re: Securely wipe out all data (was :How many 750G disks can can fit into an aggregate?)
by Sto Rage© 22 Oct '07

22 Oct '07

Have you tried the disk sanitize command? I haven't tried this, but the man page seems to talk about what you want to do. Let us know if this works for you. The disk sanitize start, disk sanitize abort, and disk sanitize status commands are used to start, abort, and obtain status of the disk sanitization process. This pro- cess runs in the background and sanitizes the disk by writing the entire disk with each of the defined pat- terns. The set of all pattern writes defines a cycle; both pattern and cycle count parameters can be specified by the user. Depending on the capacity of the disk and the number of patterns and cycles defined, this process can take several hours to complete. When the process has com- pleted, the disk is in the sanitized state. The disk sani- tize release command allows the user to return a sanitized disk to the spare pool. -G On 10/22/07, Stefan Funke <bundy(a)arcor-online.net> wrote: > Andrew Siegel wrote: > > > In my opinion (as a 12-year customer), the 16TB limit is the number one > > deficiency in NetApp software at the moment, and perhaps their biggest > > deficiency ever. I would be very surprised if they weren't losing > > customers over this issue. > > Acknowledged. I think they changed the limit from 10TB to 16TB with > Ontap7, correct? Disc sizes are growing and growing - unless NetApp > changes to solid state disks (flash), a higher limit would be nice to > have. > > > BTW, I'm searching for a way to securely wipe out all data at our R200 > disks. (ATA, 154x274gig) I wanted to build a big volume, but the 16TB > hit me too. Has anyone ever played with 'dd' at Ontap side? Is there a > hidden random device (/dev/random) I can use to create random data? Any > hints? :) >

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Re: How many 750G disks can can fit into an aggregate?
by Stefan Funke 22 Oct '07

22 Oct '07

Andrew Siegel wrote: > In my opinion (as a 12-year customer), the 16TB limit is the number one > deficiency in NetApp software at the moment, and perhaps their biggest > deficiency ever. I would be very surprised if they weren't losing > customers over this issue. Acknowledged. I think they changed the limit from 10TB to 16TB with Ontap7, correct? Disc sizes are growing and growing - unless NetApp changes to solid state disks (flash), a higher limit would be nice to have. BTW, I'm searching for a way to securely wipe out all data at our R200 disks. (ATA, 154x274gig) I wanted to build a big volume, but the 16TB hit me too. Has anyone ever played with 'dd' at Ontap side? Is there a hidden random device (/dev/random) I can use to create random data? Any hints? :)

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Query DFM server?
by A Darren Dunham 20 Oct '07

20 Oct '07

Is there an easy way to query a DFM server remotely? I'd like to grab some data on demand (Current CPU). I could do that via SNMP without too much trouble, but I'd rather not let all the clients directly poll the filers. The DFM server already has that information, and I can poll it on the machine itself with something like 'dfm report filers-ops <filer>'. I'd rather let the clients hit this machine so there's no performance impact on the filers if something goes wrong. Is there a way of getting that same data from a remote host without setting up accounts and automated logins? I thought I might be able to run the dfm software on the client directly, but if I can, I'm missing how to specify the server that it contacts... The web reports are fine, but I don't want to scrape them through the normal display. If I can get the raw data from the DFM server via http/snmp/other, that would be good. Thanks. -- Darren Dunham ddunham(a)taos.com Senior Technical Consultant TAOS http://www.taos.com/ Got some Dr Pepper? San Francisco, CA bay area < This line left intentionally blank to confuse you. >

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Re: FAS6070 NVRAM PCIe card
by Paul Rosham 19 Oct '07

19 Oct '07

Mellanox ------Original Message------ From: Albert Chin Sender: To: toasters(a)mathworks.com ReplyTo: toasters(a)mathworks.com Sent: Oct 20, 2007 01:07 Subject: FAS6070 NVRAM PCIe card According to http://www.netapp.com/go/techontap/fas6070.html?fmt=print, the FAS6070 has an NVRAM PCIe card. It's probably an OEM card and I'm curious if anyone knows who manufactures the card. -- albert chin (china(a)thewrittenword.com) Sent via Blackberry - please excuse my typing

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RE: Query DFM server?
by Kevin Parker 19 Oct '07

19 Oct '07

Or SSH or RSH the command u want. **Sent using wireless handheld... please excuse any typo's or brevity** Kevin Parker - NWN Corporation kparker(a)nwnit.com (m) 919.830.5819 (o) 919.653.4489 -----Original Message----- From: "Hackworth, Brian" <brian.hackworth(a)netapp.com> To: "A Darren Dunham" <ddunham(a)taos.com>; "toasters(a)mathworks.com" <toasters(a)mathworks.com> Sent: 10/19/2007 5:48 PM Subject: RE: Query DFM server? You can hit the DFM server with an HTTP request to send you the data it would have shown you in the filers-ops report, but in a different form, such as comma-separated values. Use a URL like http://{dfm-server}:8080/dfm/report/filers-ops?output-format=xls You can pass arguments to filter the list by filer, or by group, however you like. - Brian | -----Original Message----- | From: A Darren Dunham [mailto:ddunham@taos.com] | Sent: Friday, October 19, 2007 2:13 PM | To: toasters(a)mathworks.com | Subject: Query DFM server? | | Is there an easy way to query a DFM server remotely? I'd | like to grab some data on demand (Current CPU). I could do | that via SNMP without too much trouble, but I'd rather not | let all the clients directly poll the filers. | | The DFM server already has that information, and I can poll | it on the machine itself with something like 'dfm report | filers-ops <filer>'. I'd rather let the clients hit this | machine so there's no performance impact on the filers if | something goes wrong. Is there a way of getting that same | data from a remote host without setting up accounts and | automated logins? I thought I might be able to run the dfm | software on the client directly, but if I can, I'm missing | how to specify the server that it contacts... | | The web reports are fine, but I don't want to scrape them | through the normal display. If I can get the raw data from | the DFM server via http/snmp/other, that would be good. | | Thanks. | | -- | Darren Dunham | ddunham(a)taos.com | Senior Technical Consultant TAOS | http://www.taos.com/ | Got some Dr Pepper? San Francisco, | CA bay area | < This line left intentionally blank to confuse you. > | 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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Ronald Wendel/Athena/Delta is out of the office.
by RWendel＠deltadentalmn.org 19 Oct '07

19 Oct '07

I will be out of the office starting 10/13/2007 and will not return until 11/01/2007. I will respond to your message when I return. If you need some work done, contact Steve Bengtson

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FAS6070 NVRAM PCIe card
by Albert Chin 19 Oct '07

19 Oct '07

According to http://www.netapp.com/go/techontap/fas6070.html?fmt=print, the FAS6070 has an NVRAM PCIe card. It's probably an OEM card and I'm curious if anyone knows who manufactures the card. -- albert chin (china(a)thewrittenword.com)

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NetApp Newbie questions
by Ray Van Dolson 18 Oct '07

18 Oct '07

Hello all, my company is looking at replacing our NFS home directory storage solution (currently Sun boxes strewn all over the place) with a centralized storage solution. We're looking at a number of options (Sun StorageTek, etc) and NetApp is one of them. We've traditionally been a Sun shop, so there is some comfort there with our relationship with them and how they do support for us, but NetApp's storage solutions would appear to be far more mature at this point. We'll probably be needing only around 2TB of storage to begin with, but clearly would like the ability to expand beyond this. I've picked out the FAS270C as a potential solution for us. Questions are as follows: With the 270C, do we purchase a "head unit" and then buy a disk shelf and populate with disks? Or is the head unit and disk shelf one integrated unit? In order to do the clustered failover does this just involve purchasing a second head unit? Or a complete second set of disks as well? Would we need to purchase additional software licensing to enable this functionality? Any particularly compelling reason to go to a 2000-series vs the 270C given our relatively small disk needs at this point? How have you all found Network Appliance's support to be? Do you need to purchase an additional 24x7 support contract or is this included with your appliance? Do they do on-site service? I am a little concerned as I have placed two requests (both via a call and via web form) on Thursday of last week and as of today (Tuesday) I have yet to receive a call from a sales rep. If sales is this non-eager to get back to you -- how will support be? Perhaps if we were looking to spend a little more $$ the first time around they'd be more interested in returning my calls? :) Thanks in advance for any advice/tips. Ray

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filer to SCSI-attached tape drive performance
by John Foley 18 Oct '07

18 Oct '07

filer gurus -- got a question about tape drive performance, when directly attached to the filer (via SCSI). We have an F825 (soon to upgraded, we hope !) to which we've attached both an LTO-2 and LTO-3 8-tape library unit (these are from Dell, just FYI). The LTO-3 is a recent acquisition, and so we thought we'd run a few tests, to confirm that the LTO-3 drive is "faster". Well, it isn't - at least doesn't appear to be, based on an overnight full backup of the filer. Now, I know there are a lot of things to watch out for when making tests like this, but I though I'd check with the group here to see if anyone knows... - is there a way to tell what the data rate to the tape drive is from the filer, over the SCSI bus ? I'm looking for more of an instantaneous measurement, rather than the overall average of (amount of data moved / time it took). - anyone else played around with this (ie, attempting to measure the data throughput from filer to SCSI attached tape drive) ? If so, what did you try, and what conclusions did you reach ? Thanks much for your replies and time ! John -- ------------------------------------------------------------------------------ John Foley < johnf(a)comm.mot.com > sent from Windows using Thunderbird

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