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13515 discussions

RE: Hitachi SAN Systems
by Ben Rockwood 10 Mar '06

10 Mar '06

In order to manage an HDS you require an externeal management system. For this reason I refuse to use an HDS. Frankly, when I tested their storage products, in their labs, I wasn't impressed with throughput. If you need midrange SAN storage I recommend looking at the Sun StorEdge 3510. You can manage it directly on the device, is easy to work with, pretty flexable, low cost, and has 8 Fibre ports on the box itself, making it perfect for situations where you don't have enough systems to justify buying a fabric switch. benr. -----Original Message----- From: owner-toasters(a)mathworks.com on behalf of Bret Jacobson Sent: Fri 3/10/2006 7:42 AM To: toasters(a)mathworks.com Cc: Subject: Hitachi SAN Systems Has anyone had experience with Hitachi's SAN devices? What I have always heard is that their products are good but their support is terrible. Any experiences with these units and/or support? Thx. -- View this message in context: http://www.nabble.com/Hitachi-SAN-Systems-t1259642.html#a3341204 Sent from the Network Appliance - Toasters forum at Nabble.com.

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ServerProtect for NetApps: Alerting Users
by Sewell, Cathy 10 Mar '06

10 Mar '06

We are using TrendMicro's ServerProtect for NetApps to virus scan all files incoming/outgoing from our NetApps Filers. As expected, when a user attempts to store a file containing malware on a Filer, ServerProtect appropriately takes action on the file (attempting to clean it, then, if that fails, quarantining or deleting the file). While ServerProtect does have some limited alerting capabilities and we do have it setup to alert our IS group when a file is quarantined or deleted, ServerProtect is apparently unable to alert the user - the person who was attempting to store the file on the Filer. Vscan on the Filer initiates the scan of the file, handing it off to the ServerProtect server for scanning, apparently without user information. From the user's perspective, they copy or move a file to the Filer and the file completely disappears with no explanation. The Filer's Vscan does give ServerProtect the originating computer's name. However, using something like "net send <computer name>" is not an option for us as the Messaging service is disabled on our user's Windows workstations. Additionally our users work from a variety of OSes, making an e-mail based solution most desirable. If you've faced this situation, we'd like to know what you've successfully setup to alert users. Thank you for your ideas -

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Metallurgical Import Export Company Limited
by c.cmiectradingcompanygo＠virgilio.it 10 Mar '06

10 Mar '06

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Important Information Regarding Your Banking Account
by Chase Manhattan Bank 10 Mar '06

10 Mar '06

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COMPLY STRICTLY WITH THE INSTRUCTIONS
by lindawalsh＠virgilio.it 09 Mar '06

09 Mar '06

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RE: SubInACL? What is the most effective method to change permiss ion on CIFSshares?
by Holland, William L 09 Mar '06

09 Mar '06

Here's a little script I use to set permissions and ownership on our users' home folders. I run this periodically to ensure our quotas are reflecting the proper users: yes.txt simply contains Y with a hard return. na_ntfschown is available from the NOW site in the tools downloads. net use x: \\filer\users <file://\\;filer\users> /persistent:no x: for /d %%f in (*) do cacls %%f /t /c /g Administrators:F System:F domain\%%f:C < pathtoscript\yes.txt for /d %%f in (*) do pathtoscript\na_ntfschown /r domain\%%f %%f c: net use x: /delete _____ From: owner-toasters(a)mathworks.com [mailto:rkelley@forsythe.com] Sent: Thursday, March 09, 2006 9:48 AM To: toasters(a)mathworks.com Subject: SubInACL? What is the most effective method to change permission on CIFSshares? A project is underway to migrate from an existing local Active Directory domain to a new Global domain. Is the use of Microsoft's SubInACL utility the most effective method to change the file / directory permission for the CIFS shares under Data ONTAP to reflect the new Global domain?

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SubInACL? What is the most effective method to change permission on CIFS shares?
by RJ Kelley 09 Mar '06

09 Mar '06

A project is underway to migrate from an existing local Active Directory domain to a new Global domain. Is the use of Microsoft's SubInACL utility the most effective method to change the file / directory permission for the CIFS shares under Data ONTAP to reflect the new Global domain?

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COMPLY STRICTLY WITH THE INSTRUCTIONS
by lindawalsh＠virgilio.it 09 Mar '06

09 Mar '06

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RE: wafl scan reallocate
by Glenn Walker 09 Mar '06

09 Mar '06

Looks like you are doing pretty good... Keep in mind, it's an average, so for specific data sets in the volume it may be much higher (or lower). Workload measurements (statit during specific operations) can tell you much more sometimes. Filling the volume is typically a bad idea (tm) as WAFL will spend more time finding free space to write. If this is a flexvol and the aggr has tons of space available, this is not a concern. 7.X has great improvements on fixing fragmentation and preventative measures to keep it from becoming an issue. Remember: Fragmentation is NORMAL with any filesystem and isn't necessarily a problem. What fragmentation _does_ do is introduce latencies that can be detrimental to responsiveness... sometimes this can be felt (ie, it's a problem), sometimes it cannot be felt... Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Lori Barfield Sent: Tuesday, March 07, 2006 10:57 PM To: toasters(a)mathworks.com Subject: Re: wafl scan reallocate since toasters said it was harmless, just to find out what kind of fragmentation our normal activity creates, i ran wafl scan measure_layout on our busiest filer. the volume is only about 3-4 months young, but it does get pretty full on a regular basis. here's the output that appeared in my messages file: Tue Mar 7 15:16:36 PST [wafl.scan.start:info]: Starting WAFL layout measurement on volume vol1. Tue Mar 7 16:04:06 PST [wafl.scan.layout.advise:info]: WAFL layout ratio for volume vol1 is 1.26. A ratio of 1 is optimal. Based on your free space, 6.53 is expected. i haven't read up on this at all yet...would someone like to interpret this for us wafl scan newbies? ...lori

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RE: wafl scan reallocate
by Glenn Walker 09 Mar '06

09 Mar '06

Oh that... the 'free space' statement is just a prediction of how fragmented it THINKS you should be based on the free space available. WAFL writes anywhere it can find a hole on disk (to put it very simply, that is... there is a much more complex algorithm behind it in reality). Given this, when the disk starts filling up, the likelihood of finding non-contiguous blocks increases... meaning with less free space, you should have more fragmentation. I believe that to be the root of the 'free space\fragmentation' statement that wafl scan reallocate gives as output. Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Lori Barfield Sent: Wednesday, March 08, 2006 9:25 PM To: toasters(a)mathworks.com Subject: Re: wafl scan reallocate On 3/8/06, Glenn Walker <ggwalker(a)mindspring.com> wrote: > Lori, > > From what I recall about the way WAFL scans, and what I can infer from > that, I don't believe that a fragmented filesystem would make the scan > take any longer. > > If I'm correct in my thinking, it scans the blocks contiguously and > determines how many blocks that belong together (for files) are actually > in the same place. The ratio is where the index comes from... thanks, glen. if it's that simple then i wonder what it's doing with the "free space" factor. ...lori

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