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OSX 10.4 Tiger upgrade destoy RAID-0 from 10.3.x
I thing, that 10.4 uipgrade is the worst Apple upgrade yet.
Upgrading system from 10.3.x to 10.4 with RAID-0 disc cause to destroy this RAID.
Apple upgraded Disk utility to new version, but it seems to be uncompatible backwards with RAID from 10.3.xAnd without message are all data lost.
poseidon$ diskutil checkRAID
RAID SETS
---------Name: videoraid2
Unique ID: 02387389-3C64-11D9-965F-000A95D49B7A
Type: Stripe
Status: Offline
Device Node: disk4
Apple RAID Version: 1
----------------------------------------------------------------------
# Device Node UUID Status
----------------------------------------------------------------------
0 disk3s3 FE0ED303-4DBD-4B5A-A77A-BB28F44EDD13 Offline
1 Unknown Missing/Damaged
----------------------------------------------------------------------poseidon:$ diskutil list
/dev/disk0
#: type name size identifier
0: Apple_partition_scheme *152.7 GB disk0
1: Apple_partition_map 31.5 KB disk0s1
2: Apple_HFS DruhyDisk 152.5 GB disk0s3
/dev/disk1
#: type name size identifier
0: Apple_partition_scheme *149.1 GB disk1
1: Apple_partition_map 31.5 KB disk1s1
2: Apple_HFS Macintosh HD 148.9 GB disk1s3/dev/disk2
#: type name size identifier
0: *613.5 GB disk2
/dev/disk3
#: type name size identifier
0: Apple_partition_scheme *613.5 GB disk3
1: Apple_partition_map 126.0 KB disk3s1
2: Apple_Driver_OpenFirmware 512.0 KB disk3s2
3: Apple_Boot_RAID 613.5 GB disk3s3
/dev/disk4
#: type name size identifier
0: *1.2 TB disk4
—-RAID was made fro disk2+disk3, but /dev/disk2 donk know that belong to RAID on /dev/disk4 and in system is seen as normal unformated volume
Thank you Apple – perfect work :-((
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3 Replies
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Since the Apple RAID 0 is a software RAID, it is wise to consider this before upgrading from one major OS version to another.
I unloaded my two drive RAID system before installing Tiger, but amazingly, it was still active when I booted up after the install.
As it is ALWAYS suggested – be sure to BACKUP any thing important before updating or installing software.
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You are right, backuping is right way,
But make backwards incompatible OS without warning users is not good way.Uunaccesible drive/raid after upgrade – it is good, because I can connect discs to 10.3.x system and use data.
But destroing data on discs – it is the worse case.If software RAID version was changed – system must warn users, and dont change anything on discs to prevent data and not destoy data and destroy RAID.
Unaccesible data can be accessed in 10.3.x, but 10.4 dont make data inaccesible, but 10.4 destoy RAID and data cannot be accessed anymore from any (old or new) system..
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[John Foley] “I unloaded my two drive RAID system before installing Tiger, but amazingly, it was still active when I booted up after the install.”
Same here… upgrading to 10.4 did not cause the loss of my RAID either (SATA raid 0).
Mitch Ives
Insight Productions Corp.
mitch@insightproductions.com
http://www.insightproductions.com
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