Chosen Solution
Hi, I have a late 2011 Macbook Pro 2.2 GHZ Intel Core i7 8gb of ram. My hard drive died in my mac and I decided to replace it with an SSD and installed an HDD in the optical bay following Ifixit instructions. I booted into internet recovery and installed Mountain Lion (as it would not let me do a straight Yosemite install from a flash drive I had made on my gf’s macbook, because it couldn’t authenticate). After booting up and declining the usual iCloud prompts, I rebooted and installed Yosemite from the USB. It took a while, but eventually i booted up. I moved my home folder to the HDD a 7200rpm Western Digital Black, which is in the optical bay, (the SSD is a Samsung 340 Pro and is installed in the Drive bay). Everything appears to be functioning, but it’s slower that it had ever been using Yosemite on the HDD that had died. It take 35-40 seconds just to open System Preferences. I have used First aid on both drives via the Recovery and repaired permissions on both. I have reset the ram using option-command-r-p. I have booted into Safe Mode and Restarted the computer multiple times. Just opening a second safari window causes the spinning wheel to go for ten seconds or so. If anyone knows anything I can do, please help! I’m at a loss as to what I can do to fix this.
Are you sure you are booting up under the SSD? The optical drive SATA port is slower on this model which could explain things. The drive you have is a SATA III (6.0 Gb/s) so it’s fighting the optical drives SATA II (3.0 Gb/s) port limited throughput causing a lot of retries. Note in activity monitor the heavy CPU load for the indexer and finder tasks.
Hi, I had this problem also. You have to disable the power saving for the HDD like in this link: http://wdc.custhelp.com/app/answers/deta… Cheers!
