Taking a diskset consisting of a striped volume and changing to a mirror

Hello,
I have a metaset that looks like this:
# metastat -s wfstemp
wfstemp/d10: Concat/Stripe
Size: 2097053696 blocks (999 GB)
Stripe 0:
Device Start Block Dbase Reloc
d17s0 0 No No
Device Relocation Information:
Device Reloc Device ID
d17 No -
the /etc/lvm/md.tab looks like this:
wfstemp/d10 1 1 /dev/did/rdsk/d17s0
I need to do a lengthly firware upgrade on a SAN controller that d17s0 is on. I have another volume on a different SAN controller that I have configured the same size as d17s0 and have done a prtvtoc | fmthard so its partitioned the same. How can I go about moving from this diskset with a striped SVM volume to a mirrored SVM volume so I can then break the mirror do the upgrade and remirror?
Thanks,
Ray

A little more info:
The new device I have is available to both hosts:
DID Device Name: /dev/did/rdsk/d14
Full Device Path: stopper:/dev/rdsk/c5t600A0B80005635700000088E4A4C89AAd0
Full Device Path: strap:/dev/rdsk/c5t600A0B80005635700000088E4A4C89AAd0
Replication: none
default_fencing: global
DID Device Name: /dev/did/rdsk/d17
Full Device Path: stopper:/dev/rdsk/c5t600A0B80002A2F9E0000090248B2C3E3d0
Full Device Path: strap:/dev/rdsk/c5t600A0B80002A2F9E0000090248B2C3E3d0
Replication: none
default_fencing: global
d14 is the new and d17 is the old:
If I change my /etc/lvm/md.tab from:
wfstemp/d10 1 1 /dev/did/rdsk/d17s0
to:
wfstemp/d100 -m d10 d11
wfstemp/d10 1 1 /dev/did/rdsk/d17s0
wfstemp/d11 1 1 /dev/did/rdsk/d14s0
would that work? Please keep in mind there is data on d17 that needs to stay put.

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Hi,
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an identical copy of the data. No need to compare.
If the drive is bootable, You should have got a warning when you booted the machine saying that either drive 0 or drive 1 was corrupt/non-bootable/missing and then be given a choice to boot from the second drive.
Kate Li
TechNet Community Support

Apple RAID Card, 4 SAS drives, 1 bootable large striped volume?

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Volume and Eject Keys No Longer Work After Boot Camp 2.1 Update

Earlier this evening I allowed the Apple Software Update app in Windows to update Boot Camp to version 2.1. I allowed the computer to restart following a successful installation of the update. I've restarted two more times since then. Ever since the update (including before the computer restarted for the first time following the update), the volume and eject keys on my keyboard don't work. I also have an Apple Wireless Keyboard (one of the 2003-2007 era white/clear ones) and it exhibits the same problem. Both keyboards otherwise work fine. The computer also otherwise works fine, and there's no evidence of any driver problems.
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Will keep you posted on any progress I make.
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Sorry for the long winded post, but I wanted to give as much detail given this error has been raised before and snapshots are usually blamed as the cause.
My question is this:
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How do we prevent this issue from happening if we don't know the underlying cause?
I would greatly appreciate any advice or suggestions.
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The type of storage is really based on your requirements, and your ability to withstand downtime.
iSCSI as you are using with a NAS such as Synology or QNAP. NAS Selector - Support - Synology - Network Attached Storage (NAS)
I wouldn't use iSCSI for Exchange or any database. It's a bit slow.
Do you have a single physical host? Then I'd probably to an external direct attached storage. This would be a card inserted in your host server that gives you multilane SAS/SATA connectivity (www.techcable.com/SAS-SATA/SAS-SATA.pps) and an external disk enclosure/array.
For multiple hosts to a single array, I recommend a fibre channel connection to a FC capable switch, and on to a FC connected array.
We used to use a HP P2000 (on old G1), but it's since been retired. Worked pretty well once firmware was upgraded. http://www8.hp.com/us/en/products/disk-storage/product-detail.html?oid=4118559#!tab=features. They can be connected via iSCSI, Fibre Channel or 6GB SAS so they are flexible and reasonably priced.
Recommendations:
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     Use smaller 15K disks in RAID 0+1 for speed on databases/Exchange.
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D

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I rebooted the phone and toggled the silence switch on and off.
I finally figured out that if I started a game and turned the volume up, the noises would come back.
I think it is reasonable for a user to wish to play a game on mute but still hear alert messages.
I think if we can only have two separate systems for audio control, the alert sounds should be tied to the ringer, not to the media/game sounds.
When I spoke to an apple support person over online chat, they seemed to agree that this sounds like a bug.
I have seen many confused posts in these forums regarding alert sounds suddenly disappearing.
Below is the text that I submitted at http://www.apple.com/feedback/
If you share this problem, I suggest you do the same.
My case number is 606343836
Begin message:
I've had a 5S since a few weeks after launch and this problem has only come about in the last few weeks, so I suspect it has to do with a recent OS patch.
Sometimes my alert messages just stop working. They seem to work one minute, then they stop. Alert messages would include email notifications and txt message pings. When they are not working, I can go into Settings>Sounds>Text Tone, and all of the options will simply result in a vibration and no sound.
Rebooting the phone does not fix the problem.
What I have found to fix the problem is to open a game and raise the volume of the game. Then when I exit the game, alert messages start again.
This seems reversible, if I go back in and mute a game, my alert messages go away as well.
If this is by design, I do not think it should be, as I think it is reasonable for a user to want to control the "media" part of the volume separately from the "ringer" and "alerts" part of the volume. It makes sense to want play a game or video on mute but still get alert messages. If anything, I think the alerts volume should be tied to the ringer volume, I think that would make sense.

Additional info, which makes me think this is a bug rather than a feature. If you go into Settings > Sounds and turn off the "Change with Buttons" option, then the ringer should always ring at the volume of the slider on the screen.
The volume buttons now appear to only affect the media/games volume, and it works as expected EXCEPT:
if you are in a game and you mute the volume in the game, then exit the game, all alert sounds are muted and you can't turn them back up by raising the volume with the volume buttons.
If you go back into the game and raise the volume within the game, then exit the game, then alert sounds do turn back on.
I have tested this with two games from two developers.

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Hello experts
i have a GRPO with 10 items in lines. as far as i can see, there are missing in some of the the value for the Weight and the Volume. while checking the Item Master Data form, the volume and the weight are filled up with specific value.
could you please inform me the reason this document(GRPO) has not filled these values for specific items?
also, by clicking the Vlolume and Weight calculation, for these items the the volume is filled and the weight is not.
it is strange i suppose.
what i have found out is that in a Purchase Order, some of the items do not have a Volume or/and Weight because the BP does not have the values noticed to us and these fields are editing in item master data afterwards
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Edited by: Fasolis Vasilios on Jan 10, 2012 10:56 AM

Hi,
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It means that you imported the files in Referenced mode and have now remvoed them from the Mac. Put the disk or card back.
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AFP fails to connect to a PC volume and gives a "version of the server you are trying to connect to is not supported" error message.

AFP fails to connect to a PC volume and gives a "version of the server you are trying to connect to is not supported" error message.
Has anybody come across this error and found a fool-proof solution? I have found some stuff on the web but nothing seems to work. In particular this one on the Apple Help doesn't:
http://support.apple.com/kb/HT4700
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This may work for you:
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I replaced a wireless keyboard for my iMac today, and just noticed tonight that when I try to adjust the volume UP, it sends me to widgets, and when I try to adjust the volume DOWN, it dims the desktop behind my open window.
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How do I get my volume and rw/ff keys back? Thanks!

Also, I have attempted to submit a repair claim online as I have the Apple Care for the iMac but when I go to enter the Hardware Serial Number of the Keyboard in the Wireless Keyboard repair section, it does not recognize it.
Dustin,
Welcome to Apple Discussions.
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Format External Drive for HFS+ volume and FAT32 volume with Disk Utility

I just bought a Seagate 1tb external drive from OWC and I want to partition it into a HFS+ (journaled I assume) volume and a NTFS volume. Objective: To manually backup critical folders from my wife’s Dell (running XP) to the NTFS volume and critical Mac folders from my PowerBookG4 to the HFS volume.
My plan was to have my Mac (10.4.11) do the partitioning into a 350gb FAT32 volume for Windows and a 650gb HFS+ volume for Mac – then take the external drive to the Dell and have the Dell reformat the 350gb FAT drive to NTFS.
First question – Is this possible overall?
Second question – I haven’t been able to get my Disk Utility on my Mac to do the initial partitioning into one HFS volume and one FAT32 volume the way I want it. Is this step possible?
I’m happy to be more specific about the steps I’ve taken if the basic plan is good. From what I’ve found in some forums so far, I think I’m on the right track but am unable to execute it. Thank you.

Thank you Limnos for all your help. Last night I tried again and it worked! I’ not totally sure on what I did right but:
• Both volumes on the new ext. driver were HFS (from my last attempt the other day) so I looked into a simple erase of one partition/volume into a different format, but DU did not offer a way of erasing it into MS-DOS(FAT32). But I think I did a simple HFS erase anyway of the volume I wanted to format to FAT32. There was nothing “in” that volume because this was a new external drive but I figured it could not hurt anything.
• So then, I think I went back to Partition, locked the partition/volume that I wanted to keep in HFS+ for my Mac files, and (re)partitioned the other just erased volume to MS-DOS. I think I did it under the MBR option.
• It worked! Not sure why but my Mac recognized both volumes one as HFS, the other as FAT32. Maybe someone will find this useful some day!!
• Then, I hooked up the drive to my work Dell, the Dell found only the FAT32 drive (as expected), and I executed a short simple easy command I found on ehow.com (search for ‘convert FAT32 to NTFS’) to make that volume NTFS.
Thanks again Limnos and everyone else!

Difference between ASM Disk Group, ADVM Volume and ACFS File system

Q1. What is the difference between an ASM Disk Group and an ADVM Volume ?
To my mind, an ASM Disk Group is effectively a logical volume for Database files ( including FRA files ).
11gR2 seems to have introduced the concepts of ADVM volumes and ACFS File Systems.
An 11gR2 ASM Disk Group can contain :
ASM Disks
ADVM volumes
ACFS file systems
Q2. ADVM volumes appear to be dynamic volumes.
However is this therefore not effectively layering a logical volume ( the ADVM volume ) beneath an ASM Disk Group ( conceptually a logical volume as well ) ?
Worse still if you have left ASM Disk Group Redundancy to the hardware RAID / SAN level ( as Oracle recommend ), you could effectively have 3 layers of logical disk ? ( ASM on top of ADVM on top of RAID/SAN ) ?
Q3. if it is 2 layers of logical disk ( i.e. ASM on top of ADVM ), what makes this better than 2 layers using a 3rd party volume manager ( eg ASM on top of 3rd party LVM ) - something Oracle encourages against ?
Q4. ACFS File systems, seem to be clustered file systems for non database files including ORACLE_HOMEs, application exe's etc ( but NOT GRID_HOME, OS root, OCR's or Voting disks )
Can you create / modify ACFS file systems using ASM.
The oracle toplogy diagram for ASM in the 11gR2 ASM Admin guide, shows ACFS as part of ASM. I am not sure from this if ACFS is part of ASM or ASM sits on top of ACFS ?
Q5. Connected to Q4. there seems to be a number of different ways, ACFS file systems can be created ? Which of the below are valid methods ?
through ASM ?
through native OS file system creation ?
through OEM ?
through acfsutil ?
my head is exploding
Any help and clarification greatly appreciated
Jim

Q1 - ADVM volume is a type of special file created in the ASM DG. Once created, it creates a block device on the OS itself that can be used just like any other block device. http://docs.oracle.com/cd/E16655_01/server.121/e17612/asmfilesystem.htm#OSTMG30000
Q2 - the asm disk group is a disk group, not really a logical volume. It combines attributes of both when used for database purposes, as the database and certain other applications know how to talk "ASM" protocol. However, you won't find any general purpose applications that can do so. In addition, some customers prefer to deal directly with file systems and volume devices, which ADVM is made to do. In your way of thinking, you could have 3 layers of logical disk, but each of them provides different attributes and characteristics. This is not a bad thing though, as each has a slightly different focus - os file system\device, database specific, and storage centric.
Q3 - ADVM is specifically developed to extend the characteristics of ASM for use by general OS applications. It understands the database performance characteristics and is tuned to work well in that situation. Because it is developed in house, it takes advantage of the ASM design model. Additionally, rather than having to contact multiple vendors for support, your support is limited to calling Oracle, a one-stop shop.
Q4 - You can create and modify ACFS file systems using command line tools and ASMCA. Creating and modifying logical volumes happens through SQL(ASM), asmcmd, and ASMCA. EM can also be used for both items. ACFS sits on top of ADVM, which is a file in an ASM disk group. ACFS is aware of the characteristics of ASM\ADVM volumes, and tunes it's IO to make best use of those characteristics.
Q5 - several ways:
1) Connect to ASM with SQL, use 'alter diskgroup add volume' as Mihael points out. This creates an ADVM volume. Then, format the volume using 'mkfs' (*nix) or acfsformat (windows).
2) Use ASMCA - A gui to create a volume and format a file system. Probably the easiest if your head is exploding.
3) Use 'asmcmd' to create a volume, and 'mkfs' to format the ACFS file system.
Here is information on ASMCA, with examples:
http://docs.oracle.com/cd/E16655_01/server.121/e17612/asmca_acfs.htm#OSTMG94348
Information on command line tools, with examples:
Basic Steps to Manage Oracle ACFS Systems

Taking a diskset consisting of a striped volume and changing to a mirror

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