Scratch disk with two RAID arrays

I have 2 500GB disks in a RAID0 array for Windows / programs and another 1T RAID1 array for data. Where should I place the scratch disk?

Should I create a dedicated partition on the RAID0 array for the scratch space?
Please do yourself a big favor and do not do any partitions. They will only slow things down, as the OS thinks it's 2 physical HDD's and will tell them (the two logical HDD's), that it needs data at the same time. Remember, it's one physical HDD (even though it's striped, it's managed as one.
Now, here are my thoughts:
1.) RAID 0's will speed things up. However if one of the two drives fails, ALL is lost. I do not recommend using a RAID 0 (any flavor of 0), for the system/program disk. If you do, be sure to have a great backup scheme and use it.
2.) Now, as of CS, PS no longer has a real limitation on how much HDD space it can use for Scratch Disks. Going back, on was limited to 4GB and had the ability to set 4 of these. Back then, having say a 32GB SCSI HDD, and doing some 4GB partitions made sense. Now, it does not.
I'd get a very fast, smaller system HDD. Then, you can use either of those RAID arrays for your media, and the other for your Scratch Disks. Having a dedicated hardware RAID controller will speed things up too.
On my system, used almost exclusively for PS, AI, InDesign, Painter and Video editing, I have 4x 1TB SATA II's for Scratch Disks, 2x 1TB SATA II's for still & video and audio. My system drive is a 500GB SATA II. Were I building now, I'd probably go with RAID 0 for the media and also a RAID 0 for my Video Exports, with non-striped 1TB SATA II's for my Scratch Disks.
Just some thoughts,
Hunt

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Macbook Pro with Dual hard drives. Scratch Disk, Memory 64bit, Raid, Set Up Questions.

Hello, this is my first post.
I just upgraded from the original 2006 17" Macbook Pro to a refurbished 13" Macbook Pro 2.53GHZ 4GB Ram (2009 model).
I bought the MCE Tech Optibay and installed it (if you dont know anything about it, ask me, its amazing.) So now I have 2x 500GB 7200RPM Seagate hard drives installed.
I am running Snow Leopard, CS3, Lightroom 1.4.
I have the main hard drive set up with Snow Leopard and all the Applications. I keep all my files on external firewire 800 drives, except files I am currently working on.
The second hard drive is set up as a scratch disk for Photoshop CS3 and that is it.
I am looking to upgrade to CS5 and Lightroom 3 here within this month or so. Or if I get anxious, tomorrow, haha.
I want to know the best setup I can do with my current set up with CS3 and for my future setup with CS5.
Any info will appreciated.
-Would some kind of raid set up with my internal drives be better? How does raid work with scratch disks?
-If I upgrade to 8GB memory in my macbook pro, would I even see a difference in performance if I didn't have a scratch disk? Since CS5 and Snow Leopard can use more memory in 64bit.
I think thats all I have on my brain right now. I may have more questions, or I can guarantee I will have more later.
Thanks alot.

First the scratch. Like you said, most everyone has a different take on scratch discs but I'd guess you're wasting one heck of a lot of hard drive space using all 500 GB for Scratch, did I read that right? If I did read it correctly YES, partition it and get some use out of it!!
I've got a unibody MBP 2.93GHz, OS 10.5.8, CS3 & PS 5 (running in 32bit mode), and 8 gigs of ram. I've partitioned the one 300 GB drive so 50GB is scratch, the other partition is for OS, & Apps, and documents (images).
I use LR 2 first than export to PS 5 to finish up. My photos get to be 300MB to 500MB in size and both versions of PS work on this setup just fine. Using PS 5 in 64 bit mode is faster opening files but NON of my plugin's are 64 bit yet, that's why I'm still stuck in 32 bit mode.
Not knowing what size or kind of files you work on makes giving advice a bit tough but try setting the status indicator (don't know the right name for it) in the bottom left corner of any PS open file to "Efficiency" and watch what happens when you process your files. I rarely see mine drop below 90%, I've got the usable RAM in PS Prefs set to it's max suggested, cut way back on History and Cache.
Can't wait for NIK and others to offer their plugin in 64 bit, later this year is what I was told.
There used to be an old "rule of thumb" with old version of PS about Scratch disc size. I don't remember exactly but it may have been 3 to 5 times the size of your biggest file??
Good luck, Alan

MCS7835-H2 with two RAID

Hi All,
I have the following situation. The Quality Management is running on MCS7835-H2 with Two Disk of 72-GB SAS in RAID 1 , Is it possible to have a 6 disk 146 GB in RAID 5. You would like add the new six drives as a new RAID 5 logical partition, and would like have to partition these drives in NT assigning new unique drive letters to these new partition(s).
I would like this:
---OS---------------------------------------space extra-----------
RAID 1 (Two Disk 72GB) and RAID 5 (Six Disk 146 GB)
how is that possible?
Anyone can help me?

Actually, the default RAID level in the HP box is 1+0. If you put in 4 drives and make it into an array it will be what Cisco call RAID 10. If you put in two drives it will be RAID 1.
As Aaron says, you can put in more drives - there are 6 slots left.
Put in 6 similar drives and then open HP Array Configuration Utility.
It will see those physical devices and you can do what you like. You could make those 4 of those drives into a RAID 10, you could make all 6 of them into a RAID 5, or you could make all 6 into a huge space by choosing RAID 0 (no redundancy). Take your pick.
Once you have done that, right click on My Computer -> Manage -> Disk Management and make a new drive. Quick format or you will be there all day.
Regards,
Geoff

Merging two raid arrays together

Hello,
I'm not sure if this is posted in the right area. Please move this for advise me where to post if it isn't, thanks!
I currently have 2 MD1000's connected to my Server2012r2 system and all 30 drives are in one massive Raid 6. I want to reformat and make each MD1000 it's own separate Raid 6 array so that if one crashes, I don't lose all of my data. My question is, if I
make two separate Raid 6 array's, how do I make it appear as one array/volume in Server2012r2 so I can use it?
Thanks!

Hi JasonBlankenship,
Are you trying to use Windows Storage Space to create this two RAID6 array as high availability? That is not support scenario, may you can ask your hardware vendor for the
third party redundancy solution.
• Storage Spaces cannot manage disk drives which are accessed by a controller with RAID capability, even if that RAID capability is ‘turned off’ (set to pass-through mode.)
• Storage Spaces cannot manage Windows boot volumes.
More information:
Storage Technologies Overview
http://technet.microsoft.com/en-us/library/dn610883.aspx
I’m glad to be of help to you!
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

How can i make my external hard drive be the scratch disk with 1 FW input?!

Hello! I use firewire with my external HD AND my camera...however i only have one firewire input...i set my scratch disk for final cut to work with my external HD but when i am importing footage to my computer with my camcorder, i can not have my external HD plugged in, thus the scratch disk has to be set to something else to continue working. So how can i work around this problem?! Should i just change the settings back after i import the footage and it all goes to place?

I don't understand the need to daisy chain. I have one Firewire port on my MacBook Pro, and I use a Firewire hub. I've been connecting two 1TB Western Digital My Book Studio Edition hard drives (one for FCE and iMovie projects; one for the media files I create via export), and a Canon NTSC ZR200 miniDV tape camcorder, or a Sony Digital8 tape camcorder, or sometimes a Canopus ADVC 110, without issues. Why not use a Firewire hub? . . . except to save the small expense.

Remote sync between two RAID arrays

We have two Xserve RAID arrays. One is here in our local office, the other at a remote site which hosts a few of our servers as well. Does anyone have any suggestions for keeping the two synced? I would like to not have to deal with tape backups in the office, but the files being stored here are pretty valuable. I've dealt with this on the Windows side with a tool called Tacit. Essentially that was a Windows box that had proprietary software that would continually update remote Tacit boxes. Anything like that on the Mac side? Possibly free? Would Automator be able to sync me up?
Cheers!

I made a 400.rsync script in /etc/periodic/daily:
#!/bin/sh -
# @(#)daily 8.2 (Berkeley) 1/25/94
PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
log=/var/log/rsync.log.`date -u ''+%y-%m-%d''`
date > $log
mountpoint=`mount | grep '/Volumes/EOFILMsan'`
if [ "X$mountpoint" == "X" ]
then
echo "Oh Oh, Filmsan not yet mounted" >> $log
/bin/mkdir -p /Volumes/EOFILMsan >> $log
/sbin/mount -t acfs EOFILMsan /Volumes/EOFILMsan >> $log
fi
echo "START VIDEOsan" >> $log
rsync -av --delete /Volumes/EOVIDEOsan/ /Volumes/EOFILMsan/EOVIDEOsan >> $log
echo "END VIDEOsan" >> $log
date >> $log

Accessing shared time capsule disk with two accounts

Hey guys,
I have an airport time capsule (5th gen) and want to access a connected USB disk with my Mavericks macbook. This basically works fine: i can mount it using the finder (usually I do an automatic mount when starting my account, since I put the drive into the Login Items for my user), and the disk is secured with a disk password.
However, I have a quite annoying issue when using two accounts on the same macbook, which is my standard use case as I share the macbook with my wife: Only the user that first accesses the disk can use it, the second user gets a "no access permission" error for the disk. The second user can then disconnect the drive and reconnect, but I find this very annoying, because I have to do it all the time, and I'm wondering if I'm the only user with this problem.
Is there any way to specify access rights for the drive, such that I can access it with both accounts simultaneously? BTW, I've already tried to define specific access rights on the disk (Context Menu > Get Info > Sharing and Permissions), and I tried to change the disk security mode to "With accounts" and "With device password" - none of it made any difference.

Only the user that first accesses the disk can use it, the second user gets a "no access permission" error for the disk. The second user can then disconnect the drive and reconnect, but I find this very annoying, because I have to do it all the time, and I'm wondering if I'm the only user with this problem.
That is how Apple built it. No fixes.. no repairs.. it is a hassle of protected type file systems. Windows you can do all sorts of fudgery.. but the lack of protection (amongst others) is why you use a Mac.
Is there any way to specify access rights for the drive,
This is not a rights issues.. it is that one user at a time is allowed. Each user must logout before the next user can gain access..
I do not know of any workaround.
Pondini recommends using disk image for data on the TC.. since you can otherwise mess up the TM backup. See http://pondini.org/TM/TCQ3.html
His comments don't apply to your usage of the USB drive.. but his workaround may help.
I am wondering if you create the sparsebundle on the USB drive and allow everyone access, once mounted on the computer it might allow two user accounts access at the same time.. Sorry I have no need to try it and I cannot recall anyone attempting.. but it might present a way around the issue.. !!

How to access a shared disk with two users account on same Mac

I am seeking how to share / access at same time with two accounts on a same Mac a disk that is shared with a TC or an AEBS. When a user account is connected to the shared drive and when I switch to the 2nd user this 2nd user cannot access / see the content of the shared drive and it receives an error message. I want to use this shared drive to store some GB of movies I do not want to have on my MacBook Pro SSD but still bring able to access them from the two accounts that are set on my Mac. Just like for an internal drive. I have tried all I could but it does not want to work. How do I do that ? Thanks.

If you were running this software, the Mac's Bonjour would automatically "discover" The Linux machine.
http://en.wikipedia.org/wiki/Avahi_(software)

Save Scratch Disk with Project?

I have multiple projects on multiple drives, and I hate the fact that every time i open a project I have to make sure that it's set to the proper scratch disk. Is there any way for FCP to remember which disk is associated with which project?

Aha! The ole' laptop problem. Yes, I can see how that would be an issue. Well, I understand your position now and by now you know that it isn't an implemented procedure in FCP, BUT....
There is a trick to get FCP to always prompt you for the scratch disk. It may at least help prevent you from forgetting to set it.
First, rename one of your drives to something unique that you won't be using again (like "Unset Scratch Disk). Open FCP. Set the scratch disk to this drive and close FCP. Rename your drive back to whatever it was originally.
Now go to where your preferences are located. They can be found in:
home/library/preferences/com.apple.FinalCutPro.plist
home/library/preferences/Final Cut Pro User Data/Final Cut Pro 6.0 Prefs
home/library/preferences/Final Cut Pro User Data/Final Cut Pro Obj Cache
home/library/preferences/Final Cut Pro User Data/Final Cut Pro Prof Cache
Select them and hit CMDOPTi (get info for multiple items)
From the info box, check the locked button to lock the preferences.
Now, whenever you open FCP, it will always look for "Unset Scratch Disk", and when it can't find it, it'll prompt you to choose a scratch disk. Go ahead and choose what you'll be working on and go to work. When you close FCP it'll try to write that change to your preferences, but because they're locked, it won't be able to. So the next time you open FCP, it'll again ask you where the scratch disk is.
I realize this sounds drastic. And I personally would get tired of it after the second time it asks me, but it may help you get into the habit of setting your scratch disk when working with different projects. You could always unlock your preferences when you've had enough.
Anyway, it's just a thought if you're interested. BTW, I always lock my preferences to preserve my settings and I recommend it. Perhaps it may help you just to have them locked to a particular drive so that you always know what they're set to at the beginning of any session.
Andy

Firewire scratch disk with CS4/ 10.6.4

I'm currently using CS4 in an '07 iMac and trying to use a Newertech Ministack external drive as a dedicated scratch disk. The external drive has been erased and freshly formatted as Extended Journaled, with no OS or any other apps. This was a method(recommneded at the time) I used successsfully with a MBP running 10.5 and a LaCie external drive.
Now, when I try and designate the external as the no. 1 drive on the list in Performance Preferences, it keeps reverting back to the internal drive as #1 after restarting PS. I move the external to the first position on the list and check the Active box. The internal drive is at 2 and the Active box unchecked. When I quit PS and start it up again, the internal is back at the first position with Active checked and the external at 2 and unchecked.
Any way to make it stick?
Any insight greatly appreciated.
'07 iMac 20"/ 10.6.2/ PS CS4 11.0.1/ Ministack V2 via firewire.

Thanks for replying.
Have been doing service on a bunch of machines lately, so the journaling was done on auto pilot. Have gone back and reformatted the drive as extended.
Trashed the prefs via the 'Command/shift/option' method with no change. What's funny is that there is no " Adobe Photoshop CS Settings" folder in the Preferences folder in Library. So can't drag it to the trash.
So back to square one.

Help with installing Windows with a RAID array

Hi!
I hope you can help me. When I try setting up Windows XP Home I can get as far as the press F6 section of the installation. I formatted a floppy disk and installed the Nvidia drivers just as it descibes in the manual. However, when i'm prompted to add the Nvidia RAID drivers I get the message "The file nvraid.sys could not be found." and if I try to install the Nvidia storage control drivers I get the message "nvatabus.sys could not be found. IF I use the nforce3 SATA RAID Driver floppy provided by MSI I actually get all the way through the formatting of the hard drive but when i'm promted to press enter to start loading the Nvidia drivers into Windows it stops and will not go any further.
I have checked the the BIOS settings and double checked the BIOS settings. At first, I tried installing with the hard drives installed in ports #1 and #2. I have tried connecting the two sata 120GB Maxtors to sata ports 3 and 4.
Under Integrated Peripherals, Enable RAID for SATA #3 and #4, disable port 1+2, and enable port 3+4 and vice versa for the previous setup.
I would then save changes and restart and at the nVidia RAID BIOS screen where it would usually say to press F10 to check the array setup.
I am frustrated and stumped. Please help me...Your help is much appreciated, thank you
System:
K8N Neo Platinum
Athlon 64 3400+
1024MB Corsair XMS ProLL PC3200
2 x 120GB Maxtor SATA hard drives
Lite-on 52x24x52
ASUS 9800 Pro
Antec 480 watt PSU

Maybe you have not put the files in the correct directories needed to install the files from the floppy, or maybe your floppy is just messed up Why not just use the floppy that is supplied to you by MSI? (Psst its in the box )

Encrypting an external disk with two partitions

I have a large external disk that I'm going to be using for Carbon Copy Cloner backups. I want the disk to have two partitions, and I want the whole thing to be encrypted with Full Disk Encryption. Should I (a) first partition the disk and then encrypt each partition, or (b) encrypt the physical disk and then partition the result? I think (a) is the best path (it looks like it's at least possible), but advice would be appreciated -- thanks!

Hi,
according to this http://support.mediafour.com/entries/170474-macdrive-compatibility-with-hard-dis ks-with-multiple-partition-types-i-e-dual-format that 'feature' is currently not supported by MAcDrive.
Regards
Stefan

MOVED: Upgrading system with existing RAID Array

This topic has been moved to Vista problems.
https://forum-en.msi.com/index.php?topic=106509.0

The only issue I can foresee is a permissions one. Make sure it is set to "Ignore permissions…" before doing anything. If the drive has specific ownership when you reinstall and you fail to have a matching account to the onwer you'll need to mess with the root account to potentially get back into the drive.
Most unknowingly avoid this issue though using the same username and short username on the reinstalled system.

Fragment Size with large Raid Arrays

No, I am not a new user. I've done newfs probably hundreds
of times. But, I've never had to futz around with obscure
parameters because the device geometry was insane.
I want to get a file system made that
doesn't require 4096 byte fragments. Is that too much to ask?
I would think that there is some combination of cylinders,
heads, and sectors that should give that result, but I don't
have time to search for it.
tahoe# newfs -m 1 -o time /dev/rdsk/c2t8d0s2
newfs: construct a new file system /dev/rdsk/c2t8d0s2: (y/n)? y
With 16129 sectors per cylinder, minimum cylinders per group is 16
and the fragment size to be changed from 0 to 4096
With these parameters, it returns immediately, seemingly doing
nothing -f 4096 to specify the fragment size, like:
tahoe# newfs -f 4096 -m 1 -o time /dev/rdsk/c2t8d0s2
This worked, or seemed to.
The problem now is that it I am losing a lot of space when I have
directories with lots of little files.

The relocation you show is a relocation for a 32-bit value
relative to a linker section, in this case the .lbss section.
I would not expect such a relocation to be generated
unless the object file was produced by compiling for the
small memory model.
What type of symbol is maillage_curv.curv_rank_from_index_?
From the name, I would expect it to be a routine name, but
routine names should not be defined in the .lbss section.
Bob Corbett

Quicktime disables one of the disks in my RAID 5 array.

Hi,
I have just installed ver 7.2 of Quicktime and after I began playing a Quicktime movie file one of the disks on my RAID array came up as failed. I have managed to recover this problem, but is there anything I can do to stop this happening again???... (apart from going back to XP )
Cheers,
Mark.

I just had the same problem. This is the second time I'm having this issue, the first time was when I installed Quicktime the first time a couple months ago, I don't remember which version it was (cannot remember if it was during the installation of the first file I played). I lost one of my drive in my RAID 0 or 1 (mirroring), fortunately I was able to rebuilt the image.
The second was few minutes ago when I was trying to play the HD trailer of Rush Hour 3. But this time my computer could reboot, my 2 drives was marked as failed!!! I was really scared to lose my data. Fortunately when I went in the RAID controller setup, it was able to find one of my drive and now the second one is rebuilding. The first thing I did when I rebooted was to uninstall that crap of quicktime and will never install it again.
My config: Vista Ultimate 64, motherboard Asus P5B Deluxe with Intel Matrix Storage. Quicktime 7.2 updated few days ago.

Scratch disk with two RAID arrays

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