Why won't Dual Drive (1 TB Seagate SSHD) format?

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MacBook Pro 15" Unibody Late 2011

2011년 10월 24일 출시 / 2.2, 2.4, 또는 2.5 GHz 쿼드-코어 Intel Core i7 프로세서

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Alex @alex68161

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Why won't Dual Drive (1 TB Seagate SSHD) format?

I purchased the dual drive optical bay converter with a 1TB SSHD. All the hardware went into the laptop no problem. I am having an issue formatting the SSHD in the optical bay. I am using Disk Utility on Mac OS X 10.9.4. The drive easily formats to MSDOS and ExFAT formats, but fails when formatting to any Apple formatting system. What am I missing? I tried to use the Seagate drive software, but it is Windows-only. I've also tried partitioning over the current partition. No luck. I can partition to free space with no issue. Just not able to create an Apple Extended format partition.

Disk utility error:

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Dan @danj

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게시일: 2014년 8월 20일

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Try deleting all of the partitions and try again.

Can you give us the model number of the Seagate drive you got.

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I have tried deleting all of the partitions to free space but that doesn't work either. Using the erase part of disk utility only works when erasing to MSDOS or ExFAT formats. Here is the link to the drive I bought:

[연계 제품이 누락 또는 비활성화 됨: IF107-122-2]

It says that it should be compatible with the model MBP I have.

Alex 의 2014년 8월 20일

For clarification, I think the seagate model number is "ST1000LM014" (visible in the close up image on the product page).

Alex 의 2014년 8월 20일

This model has an issue with the higher speed SATA HD or SSD in the dual carrier. Here's a note on the issue from OWC Data doubler. The seagate drive you have is a SATA III (6.0Gb/s) while this drive can match to SATA I or SATA II I/O speeds the system is telling the HD it can run at SATA III so you get into a bit of a mess. I am surprised you can create FAT32 or ExFAT partitions with this drive. The older version of this drive could work here as it's I/O is SATA II. OK, what to do? I would try setting up the drive externally to verify things. If it worked that way that proves the issue. The other option here is to swap the drives around if your Apple drive is SATA II, more likely it's SATA III so while it may appear to work you could encounter corruptions.

Dan 의 2014년 8월 20일

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I have tried deleting all of the partitions to free space but that doesn't work either. Using the erase part of disk utility only works when erasing to MSDOS or ExFAT formats. Here is the link to the drive I bought:

[연계 제품이 누락 또는 비활성화 됨: IF107-122-2]

It says that it should be compatible with the model MBP I have. — Alex
For clarification, I think the seagate model number is "ST1000LM014" (visible in the close up image on the product page). — Alex
This model has an issue with the higher speed SATA HD or SSD in the dual carrier. Here's a note on the issue from OWC Data doubler. The seagate drive you have is a SATA III (6.0Gb/s) while this drive can match to SATA I or SATA II I/O speeds the system is telling the HD it can run at SATA III so you get into a bit of a mess. I am surprised you can create FAT32 or ExFAT partitions with this drive. The older version of this drive could work here as it's I/O is SATA II. OK, what to do? I would try setting up the drive externally to verify things. If it worked that way that proves the issue. The other option here is to swap the drives around if your Apple drive is SATA II, more likely it's SATA III so while it may appear to work you could encounter corruptions. — Dan

MacBook Pro 15" Unibody Late 2011

Why won't Dual Drive (1 TB Seagate SSHD) format?

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