I'm getting disk errors on the same partition that failed last month:
May 9 09:44:08 office kernel: disk0s3: I/O error.
May 9 09:45:52 office kernel: disk0s3: I/O error.
May 9 09:49:54: --- last message repeated 1 time ---
May 9 09:49:54 office kernel: decmpfs.c:1354:decmpfs_read_compressed: cluster_copy_upl_data err 14
May 9 09:49:54 office kernel: decmpfs.c:1377:decmpfs_read_compressed: err 14
May 9 09:51:01: --- last message repeated 1 time ---
May 9 09:51:01 office kernel: disk0s3: I/O error.
May 9 09:51:31: --- last message repeated 2 times ---
I ran Disk Utility from both a 10.6 installation disk and from my internal hard drive. I ran it several times and both sources report that there are no problems with the disk. So much for Apple's utilities. SMART Reporter 3 alerted me to these disk errors.
Time for a new drive?
I have a 27" iMac. Official specs:
System Profiler says my current drive is a Seagate Barracuda 7200.12 ST31000528AS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
Capacity: 1 TB (1,000,204,886,016 bytes)
Serial Number: 9VP7S5TW
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Rotational Rate: 7200
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Again, according to System Profiler, apparently my chip set doesn't support the new 6 gigabit speed:
Product: 5 Series Chipset
Link Speed: 3 Gigabit
Negotiated Link Speed: 3 Gigabit
Description: AHCI Version 1.30 Supported
I tend to get Seagate Barracuda drives but am open to alternatives.
Here are my questions:
1. Are there heat or other considerations that I should take into consideration when replacing this drive?
2. Is it worth paying for Seagate's "Enterprise" drives?
3. Any reason I shouldn't bump the capacity from 1TB to 2 or 3TB?
4. Any reason I shouldn't do the drive installation myself? (The iMac is already out of warranty.)
Thank you for your help!