Workaround to use drives with 4096b block for mirrored RAID?

I have 2 Hitachi 2TB Drives. One is a few months old and uses 512b blocks, the other is the same model, but newer and uses 4096b blocks.
When I try to set up the RAID Set I get the error: MediaKit reports block size error, usually caused by not being a multiple of 512.
From reading the message board, it looks like this a known bug when trying to encrypt drives with 4K block sizes or add them to a RAID Array.
Is there any way to set these up as a mirrored RAID array other than waiting for apple to fix the problem? Are there third party apps that can be used to fix this problem?
Thank you for your time.

I have the exact same problem, and until Apple solves this bug, I no longer have a hard drive large enoug for my Time Machine back-ups. I have submitted the bug, but I really need a solution. Please help!

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Mirro Raid can you use a single 4TB disk with 2 partitions for mirrored raid ?

Hello,
I have a new 4TB hardrive.
After lots of reading, i was thinking that i could partician the drive to 2 (2TB) Then create mirror raid.
Essentially thinking that i would have photos on one of the (2TB particions) and they would mirror on the other ?? as a double copy storage.
I can partician okay and the try to drag the two particians onto the "mirror raid set" and ithe following message displays :
"Can't add Seagate expansion disk" to the raid set because another volume from this disk is already part of the RAID set"
I'm now thinking i need to purchase another 4tb hardrive for this to work ?
Or if you "mirror raid set" is it actually particioning the drive and creating a copy ?
Forgive me... i'm not really very up skilled with disk utility, and basically just don't understand.
Looking forward to some help and advise
warm regards Tracy Gr

It doesn't make any sense to mirror on the same drive. The idea behind mirroring is that should one disk in the raid set fail your data is safe on the other disk. Mirroring to partitions, if it's even possible, would only bring you disaster when the drive fails because you would lose the complete raid set and all of your data. If you insist on mirroring buy another drive.

I can't use arabic with excel office for mac 2011

why i can't use Arabic with excel office for mac 2011?

anajjar wrote:
why i can't use Arabic with excel office for mac 2011?
Because even after 14 years MS has failed to add arabic support to most Office products for Mac. Instead use Open/LibreOffice or Numbers.

Is it possible to use aim with a mac for free?

Is it possible to use aim with a mac for free?

If you mean the application AIM for Mac, it will depend on your download speed.
If you mean "Can I use iChat with an AIM a screen name and does it cost anything ?" then the answer is Yes you can and no it does not cost and there is no download to do.
If you mean "Can I use the AIM service with an @mac screen name and can this be done for free ? " then the answer is again yes.
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Hi Guys,
hope to get help from someone knowledgeable out there. I have a macpro and recently experienced a failed drive. I set up that failed drive as part of a mirrored raid, this set is not my primary drive and so my computer is stilling up and running but now am wondering how I access the data from the mirrored drive. Should the mirrored drive automatically mount on my desktop whereby I would be able to access the files? This is my first drive failure and I was under the impression having a mirror would duplicate my data and allow me to access it in situations like this. I'm a bit of novice in this area and not sure if the data is truly on the "mirror" or if there are things I need to do.
I launched disk utility and was able to see the mirrored drive and I selected "mount" drive but it would not mount; I then selected "verify" and got "unrecognizeable filesystem" Is this normal? Am I suppose do something to get access to the mirrored drive? Do I install a new drive in place of the failed drive and expect the raid to rebuild automatically whereby I then see the data?
Your help is much appreciated.

Even with a mirror, you still need a backup.
Along with Disk Utility, you still need 3rd party (TechTool Pro 5, Disk Warrior 4.1.1+).
And if you like to use RAID and esp mirror RAID, consider
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Suggestions for formatting external drive with bad block?

I have a OWC Mercury 300 GB external drive. I wanted to erase it and use it as a backup for one of my laptops. The drive had been working fine as a Time Machine back up for an old (intel) iMac. I told Disk Utility to erase and reformat. It erased, but refused to reformat saying there was a bad block on the drive. Now Disk Utility recognizes the external drive but won't do anything with it. No Verify. No Repair. All grayed out. Any suggestions?

I wasn't a hard error, that's why. Repartitioning and reformatting will often fix soft errors in the directory structure. Had there been a real, new, bad block on the drive it would not be repairable. A soft bad block error can be fixed by reformatting. The hard block error may be fixable by using Zero Data one pass that may spare out the bad block. But if none of that works then you need to replace the drive.
You were fortunate that the error probably was spurious and resolved by repartitioning (may have been in the disk's RDB.)

I have a Mac Pro using Lion, with a SSD for system. Restored drive from backup. Now logon password doesn't work. Account password still works. Changing password in user group preferences no longer works to change logon password.

I have a Mac Pro using Lion, with SSD for system drive. Drive stopped booting, but otherwise appeared healthy. Restored from system backup. Now drive seems to work properly, BUT my logon password no longer works. Password OK for account; can access system preferences, and change user password there BUT logon still refuses to accept password. No luck changing password for that account after adding new administrator account and logging on from that account. Suggestions? Thanks.

If you redirect Accounts to another location (not on the Boot Drive) you need to direct them back there again after a restore.
SystemPreferences > Accounts/User&Groups > ...
... Unlock the lock, then hold down Control as you click on an Account to get access to the Advanced Options pane.

Partition an Advanced Format drive with 4KB sector (for Linux OS only)

I got a brand new WD 1TB drive, model WD10EZEX, I'm upgrading from an old 500 GB drive with Arch running on it, and I'm going to make a fresh Arch install on it.
I suddenly learned about all this Advanced Format issue, with the first units "lying" about physical sector size and all that stuff, which started like 2 years ago and I was not aware of.
I couldn't find a step by step guide to perform the proper formatting for a fresh Linux OS install with 4KB-sector, despite the info is out there scattered in tons of blogs, forums, etc.
I figured out the steps for my simple setup, and I'd like to know if everything is all right. For the ones who already know the steps, can you please go to the bottom of the post, and tell me if the final setup is all right to start the fresh install ?? I reproduce all the steps hoping that this will help other people in the future.
I'll use the whole drive only for an Archlinux install, with one partition for the / and another for /home.
Seems the GPT modern method is the way to go, and the gdisk tool will do the trick. If we are booting from this drive, with GRUB2 in a BIOS system, we must also create a BIOS Boot Partition.
So, with the drive having no partitions at all, and sda being the device name
# gdisk /dev/sda
Command (? for help): p
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 6527769B-B4BC-408C-A45B-D2DAA4036620
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 1953525101 sectors (931.5 GiB)
Number Start (sector) End (sector) Size Code Name
we create the 2 MiB BIOS Boot Partition
Command (? for help): n
Partition number (1-128, default 1): 1
First sector (34-1953525134, default = 2048) or {+-}size{KMGTP}: 2048
Last sector (2048-1953525134, default = 1953525134) or {+-}size{KMGTP}: +2M
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300): ef02
a 45GB partition to use as /
Command (? for help): n
Partition number (2-128, default 2):
First sector (34-1953525134, default = 6144) or {+-}size{KMGTP}:
Last sector (6144-1953525134, default = 1953525134) or {+-}size{KMGTP}: +45G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300): 8300
Changed type of partition to 'Linux filesystem'
and the rest to use as /home
Command (? for help): n
Partition number (3-128, default 3): 3
First sector (34-1953525134, default = 94377984) or {+-}size{KMGTP}:
Last sector (94377984-1953525134, default = 1953525134) or {+-}size{KMGTP}:
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300): 8300
Changed type of partition to 'Linux filesystem'
we can check the setup
Command (? for help): p
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 6527769B-B4BC-408C-A45B-D2DAA4036620
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 6143 2.0 MiB EF02 BIOS boot partition
2 6144 94377983 45.0 GiB 8300 Linux filesystem
3 94377984 1953525134 886.5 GiB 8300 Linux filesystem
and everything looks fine, we have the multiples of 8 starting sectors, so we write the changes
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/sda.
The operation has completed successfully.
now we need to give the / and /home partitions a format, I choose ext4 and ask for a 4096 block size just in case we have a "lying" unit (not my case but I prefer to write down the most general command)
# mkfs.ext4 -b 4096 /dev/sda2
mke2fs 1.42.6 (21-Sep-2012)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
2949120 inodes, 11796480 blocks
589824 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
360 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
and the same thing for /dev/sda3 .
Check with gdisk and parted that everything is fine, is this all right to start the install ??
# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.5
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 6527769B-B4BC-408C-A45B-D2DAA4036620
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 6143 2.0 MiB EF02 BIOS boot partition
2 6144 94377983 45.0 GiB 8300 Linux filesystem
3 94377984 1953525134 886.5 GiB 8300 Linux filesystem
# parted /dev/sda
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA WDC WD10EZEX-00R (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 3146kB 2097kB BIOS boot partition bios_grub
2 3146kB 48.3GB 48.3GB ext4 Linux filesystem
3 48.3GB 1000GB 952GB ext4 Linux filesystem
Last edited by karamaz0v (2012-12-06 06:39:45)

Your partitions look fine from an Advanced Format point of view. The test is simple: Are all your partitions' start points, as measured in sectors, divisible by 8? Yours are.
karamaz0v wrote:what confused me a bit, was that I saw a lot of setups with the BIOS boot partition, and also a 200 MB EFI one. Having a BIOS system, I think I don't need the EFI one.
Some people do this because they're unclear of their requirements. Others do it because they want to have the option of switching boot modes between BIOS/legacy and EFI. With both types of boot loader installed, you can choose on a boot-by-boot basis which way to start the computer, assuming it supports both boot modes.

2LIS_06_INV Delta Procssing with invoices blocked for payment

Hi all-
I am using the 2LIS_06_INV data source to determine invoices that are blocked for payment. The required fields I am reporting include SPGRM and SPGRP.
2LIS_06_INV picks up these fields when first blocked with transaction MIRO (setting a qty or price block during posting). However, updates to these fields using MRBR (releasing the qty or price block) are not captured in delta processing (as stated in OSS note 1494379). If the 2LIS_06_INV data source specifically does not handle delta processing of MRBR updates, how does SAP handle the reporting of blocked invoices using this data source?
Thanks!

Perhaps a bit late, but interesting for future reference. I had the same issue and logged this with OSS. The response was that it was a design decision not to include MRBR, MRKO, MR11 and MR11_SHOW in the delta process for 2LIS_06_INV.
This means that you have 2 options :
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- Create a new datasource (based on the change management CDHDR and CDPOS table, I would suggest) to ensure the correct status is sent to BW (that is what we are planning to do). This can then be extracted after the 2LIS_06_INV datasource.
Regards,
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Has anybody successfully used Broadcaster with Internap's CDN for live streaming?
If so how are you configuring broadcaster?

What are your current settings in FMLE ?
What is your input feed? from webcam? external HD camera? Encoder card?
If your connectivity approved you can raise up the bitrate and set higher output size.
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Maximum drive size for mirrored RAID

I'm want to set up a mirrored RAID with two 4TB drives that I have. When I put the drives in the tower (Mac Pro, OS 10.8.5) and open Disk Utility, the RAID button at the top does not show up for these drives. I only see First Aid, Erase, and Restore. Is there a max size for a drive that I'm exceeding? Or is it something else?

Hi - from the research I have done, there is a BUG in the OS. A solution is to boot with an older version of OS X and format the drive with the version of disk utlity on the older OS, or yank out the drive and put it in one of those 'drive toaster' type devices and format it EXTERNALLY. The problem seems to be localized when it's formatted with the drive INSIDE the MacPro.
You would figure that this would be a high priority fix, but NO. I went nuts for a few days trying to figure out WHY I could not see the RAID tab.
There is also third party software that has a more robust RAID solution. I have NOT tried it yet, but you should check it out.
http://www.softraid.com/
Alfred
PS: If you've resolved this problem, do share your findings here too!

How to format hard drive with mac air for use on mac and pc

I'm new to MAC and can't make much sence of what has been said to do in other questions. All I want to be able to do is use my 500gb My Passport hard drive on my MAC and other PC's. I have saved all the data that I want to keep on another hard drive so can re-format the hard drive if needed. I want to do all the set up on my MAC AIR.
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Reading assignment:
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Ciao.

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I've got an 80gb NTFS drive that causes an unmountable boot volume BSOD in a PC. Mounted in a 2.5" USB enclosure, Windows 7 sees it only as an empty "RAW" partition and can't actually mount it. Using the Paragon NTFS driver, I can mount it just fine in Snow Leopard on my MBP.
However, when I attempt to copy files from it, it pretty quickly finds one with a bad block and gives up. I'm looking for the best way to get as much data (really just images) from this as possible without going through and restarting the transfer after each of the many corrupt files.
I've tried both Minicopier (which still prompted on every error) and Ultracopier (which would freeze every ten or so corrupt files) as far as simple copiers go, and I've tried DiskDrill and now FileSalvage for full-on data recovery applications. I'd rather use something like the former, but am open to free alternatives to the latter as well.
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I've had problems with NTFS formatted external drives containing unremovable "corrupted files".
My problem was resolved using windows. Since Mac isn't supposed to handle NTFS I could not find a suitable way to resolve corrupted file issues, though in windows there is a tool to handle this:
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How to recover data from a hard drive with bad blocks?

An external hard drive, 4TB Iomega...connected via eSATA cable...had a power outage and the drive won't be read by OSX now. (Yes, it was on a surge protector and no I did not have a backup. I was actually preparing for the process of creating a backup when the power went out!) Anyway, I have tried using Data Rescue 3 and DiskDrill to try and recover data from the drive. I can recover the first 1/3 of the drive, but it ejects when either app tries to access the bad block. Can anyone tell me how/what software to use to recover the data? I know there are programs that will avoid the bad block but I've only found them for Windows. Are there any that will do such a thing in Lion? Any help will be appreciated...and no, I can not afford a data recovery service. Trying to do this on my own.

Basics of File Recovery
If you stop using the drive it's possible to recover deleted files that have not been overwritten by using recovery software such as Data Rescue II, File Salvage or TechTool Pro. Each of the preceding come on bootable CDs to enable usage without risk of writing more data to the hard drive. Two free alternatives are Disk Drill and TestDisk. Look for them and demos at MacUpdate or CNET Downloads.
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Also visit The XLab FAQs and read the FAQ on Data Recovery.

Workaround to use drives with 4096b block for mirrored RAID?

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