Well, I've just taken a bootable backup of my Mac - so thought why not? I have the previous CD's used to go to 1819 and a 1571 one handy too.
Installed the GC version, as Snow Leopard doesn't do TRIM - cannot do any harm as far as I can see...
Dowloaded the .iso, burnt it to CD and booted it. A looong wait for a prompt and it updated the drive. This is a MacBook Pro 5,1 up to date will 10.6.2 and all patches.
Well, it seemed to boot much quicker than of late.
On the 27th September 09 I had the following from XBench.
Uncached Read 838.78 155.64 MB/sec [256K blocks]
Disk Test 234.34
Sequential 188.95
Uncached Write 206.14 126.57 MB/sec [4K blocks]
Uncached Write 179.48 101.55 MB/sec [256K blocks]
Uncached Read 120.05 35.13 MB/sec [4K blocks]
Uncached Read 413.76 207.95 MB/sec [256K blocks]
Random 308.44
Uncached Write 120.62 12.77 MB/sec [4K blocks]
Uncached Write 326.87 104.64 MB/sec [256K blocks]
Uncached Read 2345.39 16.62 MB/sec [4K blocks]
Uncached Read 838.78 155.64 MB/sec [256K blocks]
Tests with the new FW give
Disk Test 257.78
Sequential 220.88
Uncached Write 234.19 143.79 MB/sec [4K blocks]
Uncached Write 298.14 168.69 MB/sec [256K blocks]
Uncached Read 124.33 36.38 MB/sec [4K blocks]
Uncached Read 409.45 205.79 MB/sec [256K blocks]
Random 309.49
Uncached Write 113.53 12.02 MB/sec [4K blocks]
Uncached Write 395.69 126.67 MB/sec [256K blocks]
Uncached Read 2580.22 18.28 MB/sec [4K blocks]
Uncached Read 832.33 154.44 MB/sec [256K blocks]
Be interesting to see what happens when the GC kicks in....
Oh, and I put the MacBook to sleep (closed lid, blinking light) whilst editing this post too.
So, at least for me, update was NON-destructive and things seem to be much like the feeling I had when I first put the drive on with 1571, before 1819 appeared and slowed everything down.
Happy bunny at the moment.
CRUCIAL_CT256M225:
Capacity: 256.06 GB (256,060,514,304 bytes)
Model: CRUCIAL_CT256M225
Revision: 1916
Serial Number: {removed}
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
Macintosh HD:
Capacity: 218.91 GB (218,909,114,368 bytes)
Available: 80.06 GB (80,057,860,096 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /
BOOTCAMP:
Capacity: 36.81 GB (36,806,066,176 bytes)
Available: 9.46 GB (9,458,135,040 bytes)
Writable: No
File System: NTFS
BSD Name: disk0s3
Mount Point: /Volumes/BOOTCAMP
