LUN masking and zoning question.

Hi all,
If my storage array presents a number of LUNs/LDEVs down two physical fibre cables which are outputs from the primary and secondary controllers, and those two cables are ports on the MDS switches, do you need to know the LUN number as it was created on the array?
I read the Fabric Manager Configuration Guide and it talks about LUN masking at the array. It says to check the Check LUN box. I have not tried this so I was wondering if the LUNs on the array will appear for me to select. If there are say 8 LUNs presented (4 primary and 4 secondary), are they visible when using this option?
I have a fair sized number of new blades with HBA's with dual ports that need to connect to a large HP array. The setup will be one path goes from a 9216 to a 9509 via port channels (and another path through a similiar setup) to the HP array which will be presenting LUNs through LUN masking to the individual WWN's of the blade HBAs ports. There will be literally hundreds of LUNS coming out of the array so if they are presented in Fabric Manager, it would make my life easier especially when the array is looked after by HP and they might not be around when I start configuring the SAN.
Thats the joy of outsourcing.
Any help would be very welcome.
Regards
Stephen

Finding out what LUNs are available is done via SCSI commands INQUIRY and REPORT_LUNS. In general, having the MDS discover the luns is not done since the MDS does not need to know. The end devices that are zoned and configured in the array's LUN security will need to know and they will use the two above frames to find this info out. The check luns checkbox that you reference is when doing LUN zoning (which is part of Enterprise license). In fact, the manner in which we are able to zone based upon a LUN is by trapping and manipulating the REPORT_LUNS frame. A generic implementation is to simply zone an initiator and a target via their PWWN's. Then, in the array, there is a security mechanism that allows the PWWN of a device to access a particular LUN. That LUN is then associated with a particular volume of disk space. However, we offer the capability to zone with the granularity of the LUN/PWWN combination if you so desire it.

Similar Messages

  • LUN masking and mapping in Nexus 5548up OS 5.1(3)N2(1)

    Hi,
    I just like to know how we can do Boot LUN Masking for ESXi Host in nexus 5548 ,  that only use by specific host and other host cannot see it.

    If you are looking for MDS like LUN zoning, Nexus 5000 does not support it. You will need to configure LUN masking on your storage array

  • RAID, clients, switch and LUN masking

    Hello,
    To cut to the chase of it, I'm not sure if my LUN masking is set correctly.
    I have a RAID unit with 4 slices. In RAID admin I have set the LUN mapping and masking according to the instructions in the RAID admin guide.
    I also have 4 xserves ( all 10.4.6 ) - each is assigned ( mapped to and masked from ) its respective slice of the RAID through an emulex 355. The emulex utilizes a configuration file specified by emulex corporation for this specific apple/raid configuration.
    User home directories reside on the RAID slices.
    PROBLEM: When I log in a user on a desktop client ( 10.4.6 ) I can see the shared homedirectories on the other slices of the RAID via private/Network/Servers. This makes me nervous.
    Note that the xserves DO NOT mount the other RAID slices.
    Am I worrying over nothing or did I miss something in my setup? I'll be glad to post further details if requested.
    Thanks for you time.
    Anthony
    Xserves, RAID, Emulex 355   Mac OS X (10.4.6)  

    p.s.
    we are NOT using xsan.
    and, to clear up a statement in the orginal post, xserves are mapped TO thier respective RAID slice and masked FROM the other slices.
    Anthony
      Mac OS X (10.4.6)  

  • Replacement for LUN masking

    Hello,
    I currently have an Xserve RAID with 14x400GB drives running firmware 1.5/1.50f. Each side is a RAID5 array split into two LUNs (total four LUNs). I have a Qlogic SANbox 1400 fibre channel switch, and each LUN is attached to four computers (1 Leopard, 1 Ubuntu, 2 Windows). I use LUN masking to make sure each computer can only mount the appropriate LUN.
    Anyways, I'm considering upgrading to firmware 1.5.1 for 750GB drive support, but I understand the RAID Admin tool no longer supports LUN masking (though the firmware on the XRAID seems to).
    My question is, how do I use Zoning on the Qlogic switch as a replacement for LUN masking? I often see Zoning mentioned as a substitute for LUN masking, but I can't figure out how to zone down to the LUN level. I can create a zone that include the WWPNs of the HBA and the Xraid controller, but not down to the LUN level. The result is that the computers have access to LUNs they shouldn't.
    What am I missing? Is the Qlogic 1400 incapable of this?
    Thanks!

    I have sliced the LUNs.
    I've come across a small number of other posts suggesting the same thing - upgrade the firmware to 1.5.1 and use the old 1.5 tool for LUN masking administration. I'm OK with this if it does indeed work, I just don't want to experiment with production storage

  • LUN masking on or off?

    Hello, may be this is stupid question.
    Since yesterday, I used only one disk array on the right side of XServe Raid. I created raid5 array on left side, but this array is not visible on my xserve. New array is online and I have last firmware on both controllers also. How can I arrange this? I tried it with LUN Masking enabled and disabled on both controllers, but was not successful. XServe RAID is connected to xserveG4 only - both fiberchannel cables are connected to one machine. Enclosure is first generation XServe RAID.
    Thanks for info.
    Leos

    Have you tried shutting everything down and powering up your XServe G4 first, then once it's up powering up your RAID? Or vice versa? It tends to get moody if you don't do it in the right order.

  • Color correction, muzzle flares and smoke questions

    A couple of days ago I directed an action sequence called 'Silent takedown' using Premiere CS5 and After Effects. The goal was to do a very fast paced editing style but still within the realm of 'classic' action films from '90 like Face/Off and Mission Impossible 2. I've got some question regarding visual effects done in After effects. Tell me if you thought they were good or bad. Also the color correction was done in AE and PP. Does the overall movie look good?
    Here's a full link again: http://www.youtube.com/watch?v=O62_hYOmlaY
    Thanks for watchin'

    Well, aside from it being quite disturbing to have a team of 14 year olds turning everyone to blood soup it's got some great camera work.
    Your first mistake might have been thinking there's anything worth copying in mission impossible 2.  Sorry, had to be said.
    Todd's right.  The clouds of blood is comical.  Maybe tone that down?  Right now it just looks like a string of video copilot tutorials one after another.  You need to hide effects, and make them feel seamless.
    Ask yourselves what are you trying to showcase.  If it's post production, you have to tweak those effects and make them look classy.  There are shots where bullet holes are appearing in glass and there's little breakage, and no reaction from the actors.  You can't just glue in effects.  If the actors don't react, you can't use the shot, or it should be changed so you don't notice.  Add a shake etc.
    If it's editing, then that has to be solid too.
    You've got time shifting all over the place without it being stylistic.  For example, the guys who walk up off the top are shown in a wide shot that you re-use for the security cam.  They enter, put their masks on, walks softly up to the guards and take them out, but then we are inside and the scarface guy is watching action that happened minutes ago on the monitor.  If you're going to jump around in time, you need to find a stylistic way to do that.  Why not bring the scarface guy's scenes into the lead up, show the monitor, (drop that long shot at the top) to introduce the guys sneaking up.  This introduced tension (will scarface notice???) gives you an idea of who the guards are watching out for and drops that opening super wide of the two kids going up against the wall.  That shot doesn't work because when you show them super-wide, you get a feeling for how exposed they are and what a terrible job they're doing of "sneaking" up.  But it works as security cam footage...
    Another example is when you have one of your agents say "good morning gentlemen.  He says something strange to men who are in masks and they give him enough time to put a gun to his head and pull the trigger in spite of the face that they're holding their own guns.  Then you have the camera exposure flash cuts to the other agent sneaking up... 
    If you want to make this effect work, you need to use editing to explain why the second guard didn't reflexively shoot the first agent.  have the agent say, "good morning gentleman" and start the action of raising the gun.  Then flash cut to the other agent sneaking up, then back the the first agent shooting, then back to the second guard being shot.  Then all of a sudden you have a frenetic action scene.  Right now the pacing feels slow and unrealistic.
    The effects go off the rails a bit at the end.  The muzzle flashes don't aim in the right direction, and the particle smoke becomes very obviously added in post.  One shot in particular is a dude walking through a black smoke cloud from behind a van.  Loose that smoke in the second to jump cuts.  And if oyu're going to have a smoky enclosed space. you have to add atmosphere in other shots.
    If you're not going to use practical effects for the gunshots, you need to cut away. Having a guy explode with particles and stock footage will always be "funny" without having some squibs on set.  I know it makes it harder and more complicated, but you have to have the whole package, or it'll always just look like kids messing around and...
    ... oop, my render is done.

  • Get LUN ID and TARGET ID

    Given an entry in /dev/rmt, how do you programmatically get its LUN ID and target ID?
    It shows up in dmesg's output but I'm wondering if there's a call to uSCSI to get in.
    Under Linux, you can use ioctl(fd, SG_GET_SCSI_ID, &info) to get it.
    Thanks,
    Quang

    It's ashamed that no one can provide an answer to such a simple question. Aren't there anyone working for Sun lurking around helping people here?
    Quang

  • Can anybody say why In the layer menu the background color is white when opening a layer mask, and why does it automatically turns black by simply opening the layer mask properties menu? The vector mask is white anyway.

    Can anybody say why In the layer menu, the background color is white when opening a layer mask, and why does it automatically turns black by simply opening the layer mask properties menu? The vector mask is white anyway.

    Topic or subject titles should be clear, pertinent and concise so that individual users can tell at a glance if they can help or not.
    That field is not for attempting to fit your entire question in there.
    Please keep this in mind next time you post.  Thank you.
    A lot more information about your hardware and software is needed.
    BOILERPLATE TEXT:
    If you give complete and detailed information about your setup and the issue at hand,
    such as your platform (Mac or Win),
    exact versions of your OS, of Photoshop (not just "CC", but something like CC2014.v.2.2) and of Bridge,
    your settings in Photoshop > Preference > Performance
    the type of file you were working on,
    machine specs, such as total installed RAM, scratch file HDs, total available HD space, video card specs, including total VRAM installed,
    what troubleshooting steps you have taken so far,
    what error message(s) you receive,
    if having issues opening raw files also the exact camera make and model that generated them,
    if you're having printing issues, indicate the exact make and model of your printer, paper size, image dimensions in pixels (so many pixels wide by so many pixels high). if going through a RIP, specify that too.
    a screen shot of your settings or of the image could be very helpful too,
    etc.,
    someone may be able to help you (not necessarily this poster, who is not a Windows user).
    Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
    http://forums.adobe.com/thread/419981?tstart=0
    Thanks!

  • Trying to Disable LUN Masking under 1.5.1

    Hi,
    I have an Apple XServe Raid with 7x750Gb drives. The array is configured with three slices which would mean three LUNs. Even though Lun Masking is no longer an option in 1.5.1 it still shows up as enabled on the XServe Raid. Non of the luns are visible to the connected host. There is no switch involved.
    How can I disable Lun Masking under 1.5.1?
    Thanks,
    Jason

    Hello nosajesahc, and welcome to the Appleboards,
    Do you have a copy of the the Admin Tool version 1.5? LUN Masking was present in that version of the tool and think you should be able to turn it off and the resume using the current version.
    HTH,
    =Tod
    http://www.apple.com/support/downloads/xserveraidadmintools15.html

  • Lun Masking

    Hello
    I have an xserve raid (firmware 1.5.1/1.5.1.c) configured with 3 slices and Lun Masking which 3 xserves connect to. They are all attached to a qlogic fc switch.
    Recently the company bought 2 more servers to support another area and they need them to mount 2 of the slices. I added the WWN to the corresponding zoneset in the switch, and added the WWN to the lun masking configuration (using raid admin 1.5) and i got the volumes mounted in the new servers.
    The next day i recieve a phone call asking me to switch the volumes from the servers, slice 2 to server 4 and slice 1 to server 5. After making the appropiate changes in server admin and rebooting the servers the volumes in both servers would not mount. In Disk Utility i can see the volume and the corresponding raid slices, however Disk Utility tells me they are degraded and that i should run first aid on the disk. The first aid does nothing to get the volume mounted on the servers.
    If i put the lun masking settings back (slice 1 to server 4) it mounts without a problem. Is there a cache on the lun masking settings? Is it the firmware version? a downgrade and upgrade perhaps?
    If anyone has encountered something similar, any help would be appreciated.
    Thanks!
    Raul Basurto Rosenzweig

    Hello William
    I did reboot the hosts. At least the 2 i'm trying to get the volume to mount. The other 3 server that also use that raid, i can't reboot them, at least not during the daytime, since they are in production.
    I did reboot the raid and the hosts.

  • Applying a mask and cropping so exports in Flash

    I created a Photoshop CS4 file with about 10 layers which I placed in a group.  I've applied a vector mask to the whole group so all of the pictures are masked in an identical manner.  I also cropped the group to the same size.
    When I import this file into Flash CS4, all of the layers are showing up at their original sizes (instead of the size I cropped the group to), and the mask isn't being applied.
    Can someone explain the proper way to get this layered file into Flash CS4 with the cropped size and mask intact?
    Thanks for the help.

    I'm not an expert in photoshop, but I've tried everything I know to apply the mask to multiple layers and was not able to do so, and still maintain separate layers. I selected all the layers first and tried to apply a mask, and that didn't work. Then I grouped all the layers and was still unable to apply a single mask to all layers. The only way I was able to apply a mask to all layers was to flatten the image. Given that you're importing it into flash, I'm assuming that you're animating the various layers to acheive a certain effect. If that's the case, then flattening the image to apply the mask to the entire document at once doesn't make sense. If you're using the entire image without the need for layers, then of course you can flatten the image and then use the mask to make a selection and clear the unwanted parts of the image.
    I have to imagine that there's a way to do what you're asking, but with my level of experience, I'm unable to find a way to make it happen. There may be a way to export the file to flash with the layer mask intact, or perhaps there's a way to apply the mask to all layers at once, but I'm unable to find it. I would apply it to each layer individually which may take a few more minutes, as it's the only way I can find.
    The only other option I can think of, is to place the entire psd file in a flash document directly. CS5 allows this in After Effects and Premiere Pro, which may keep the mask intact. I don't know enough about Flash to know if that's possible as well, but it's worth a shot.
    As a final suggestion, maybe you can do all of your annimation and effects in After Effects, then just save it as a Flash file. I've done this before and it's allowed me to create rather robust annimations and effects without having to learn the more complicated aspects of creating a flash document from scratch.
    Hopefully one of the CS5 gurus will see this and point the way to a quicker solution, but this is all I know to do at the moment.
    Best of luck with your project.
    P.S. To answer the last part of your question, yes, I can only imagine that as a workaround, you can make a selection from the mask and clear the unwanted sections of each layer, and then bring it into Flash.

  • So, what happened to LUN Masking

    I noticed in the release notes for the new firmware update (1.5.1) for the Xserve RAID that LUN masking has been removed from the RAID Admin utility...
    And low and behold... yup... it's not in the admin utility anymore... anywhere...
    So, what's with the removing of a pretty important feature with a minor revision?
    everything...   Mac OS X (10.4.8)  

    I'm not sure what your IT background is, but LUN masking in a storage environment is NOT an advanced feature, and the concept of hardware RAID is common in any serious server platform.
    "Advanced" need not equate to complexity, enter Apple.
    Regardless, it is simply unacceptable to remove a core functionality you've provided since the inception of a product with no advance notification that said functionality is going to be removed, and no documentation other than "Removed LUN Masking from Advanced tab" when it does happen.
    So Apple needs to charge $1.99 to enable previously shipped Core 2 Macs to use Wireless-N, in order to comply with Sarbanes-Oxley. Okay, fair enough. So how much $ is Apple going to give back to me per Xserve RAID that my company has purchased, since we paid for functionality that they're now taking away? Just some food for thought.
    And yes, I have notified both my enterprise account rep and my field engineer of my disatisfaction with this issue. I'm an Apple fan-boy, and even I think this is ridiculous on Apple's part.

  • Mask and Limit Testing Express VI

    Hello.
    Im a bit new at looking at limit testing signals. Im using the Mask and Limit Testing Express VI to mask a signal I acquired previously. See attached VI.
    My problem is that we would like to load the limit mask at run time using a file of some sort.
    At the moment I am un-able to get any sort of mask loaded using the limit inputs to the Mask and Limit Testing Express VI. Does anybody know how I might do this?
    Thanks in advance
    Chuck
    Attachments:
    Limit Test (SubVI) example.vi ‏724 KB
    Limit Type.ctl ‏5 KB

    Hi and thanks for getting back so soon
    True the upper and lower inputs are not connected because I wanted to show a working (all be it without an external mask) VI
    the problem is I can't get the upper and lower inputs working in any form If I connect the inputs.  So I guess my question should be,
    How do I wire the upper and lower inputs to produce a working mask with the data supplied?
    Then how do I use a file to provide the mask data.
    Sorry for my lack of clarity and I hope this helps.
    Chuck

  • LUN Mask changes without reboot?

    Are there any controller firmware enhancements in process to allow LUN masking changes without a controller reboot? We have several XRAIDs in our SAN with masking enabled. With the current limitation we must schedule several servers to be down before making the changes. That's really a pain...
      Other OS  

    Apple won't typically comment on any future products or enhancements.
    However, your request is a common one. I suggest you contact Apple (via web site or via your sales rep, if you have one) and suggest the enhancement and let them know your pain.

  • Lun Masking limited to 8 WWWN's?

    I have a couple 7TB xServe RAIDs, with each bank of drives configured for (1) RAID 5 array (6 drives, 1 hot swap) & sliced into 6 LUNs. Everything works as expected until I reach 8 entries in the LUN Masking table. The option to add a ninth host is greyed out. If I remove any the the working 8, the options is available again. Is there any work-around for this? The docs don't indicate a restriction on the number of hosts that can be specified. With the above config, the 8 LUN per controller limit is not passed, so I don't understand why the number of hosts is giving a problem.
    thx,
    Vince

    Thanks for the reply. I am using VMware ESX server on the hosts that will be sharing LUNs. It handles the sharing natively, and also handles multi-pathing but the 8 host limit means that I can only have 4 hosts multi-pathed to the xServe.
    I'd also like some LUNs to be masked exclusively for other non-ESX servers to avoid contention but the 8 host limit is making that impossible.
    I have been very satisified with the xServe RAID so far except in the limitations (6 slices, 8 LUNs, and now 8 hosts for LUN masking). These are artificial limits that would make the xServe a better product if addressed.

Maybe you are looking for