internal super drive replaced, not recognized when connected via usb

Lets backup here a bit, As you may have put your data at risk! The optical drive port does not offer HD crash guard so placing HD's on its connection that does not have crash guard onboard the drive its self puts it at risk. If you moved the original Apple HD over it does not have it onboard. I would recommend you put the HD back in the HD bay and put the SSD in the optical drive carrier. In your system both SATA ports are same speed and you can boot up on any SATA port.

As for the Optical drive running externally are you sure the USB port is OK?

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Thanks Dan.

if I put the hdd Back in its original place and put the ssd in the SuperDrive place, how can have the system Boot up from the ssd?

So far everything I read led me to do as I did

Regarding the optical drive, I tested it in 2 lap top with the dame result, i.e. It catches the dvd, then splits it out After some 1-2 minutes and the optical drive is not detected

stefano さんによる2018年1月21日

Press the Tab key when you start your system so you can select the SSD drive. Once you've booted up go to your Preferences 'Startup Disk' to set the drive.

Reference: Mac startup key combinations

Dan さんによる2018年1月21日

thanks for the tip, Dan.

Going back to your first suggestion, I would like to:

- transfer data from the hdd to the ssd (I did it for the 4 folders "apps, system, users, library" in another macbook and it worked)

- format the hdd and using it as secondary drive to increase the storage space.

do I still need the hd crash guard for the hdd? If I regurarly back up with time machine I should be on the safe side, shouldn't I?

the hd crash guard would be good for the ssd where lay the operating system, wouldn't it?

thanks in advance for your advice

stefano

stefano さんによる2018年2月5日

Crash guard is a physical port thing within the system (HD SATA port) and is only useful for a spinning platter drive (HDD) it offers not benefit for a solid state drive (SSD). Which is why you should leave the HD in the HD SATA port connection and use the optical drive port for your SSD. Switching which drive to boot from is just matter of a setting in the OS.

As to TimeMachine backups: Sure its a smart thing to do for both drives.

So you bang your system and kill the drive now what? Some of your stuff may not be backed up so the info would be at risk. Even then you don't have a working drive so you need to deal with that needlessly.

Here's a way to look at it... You're on rural two lane road you could drive on either the left of right side of the road. But if you pick the wrong side you might get a surprise around the bend. This is a common issue in Ireland where mainland europeans drive on the right side of the road where they need to be on the left!

Dan さんによる2018年2月5日

Thanks dan. Is the crash guard present Also on windows laptops?

stefano さんによる2018年2月5日

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Thanks Dan.

if I put the hdd Back in its original place and put the ssd in the SuperDrive place, how can have the system Boot up from the ssd?

So far everything I read led me to do as I did

Regarding the optical drive, I tested it in 2 lap top with the dame result, i.e. It catches the dvd, then splits it out After some 1-2 minutes and the optical drive is not detected — stefano
Press the Tab key when you start your system so you can select the SSD drive. Once you've booted up go to your Preferences 'Startup Disk' to set the drive.

Reference: Mac startup key combinations — Dan
thanks for the tip, Dan.

Going back to your first suggestion, I would like to:

- transfer data from the hdd to the ssd (I did it for the 4 folders "apps, system, users, library" in another macbook and it worked)

- format the hdd and using it as secondary drive to increase the storage space.

do I still need the hd crash guard for the hdd? If I regurarly back up with time machine I should be on the safe side, shouldn't I?

the hd crash guard would be good for the ssd where lay the operating system, wouldn't it?

thanks in advance for your advice

stefano — stefano
Crash guard is a physical port thing within the system (HD SATA port) and is only useful for a spinning platter drive (HDD) it offers not benefit for a solid state drive (SSD). Which is why you should leave the HD in the HD SATA port connection and use the optical drive port for your SSD. Switching which drive to boot from is just matter of a setting in the OS.

As to TimeMachine backups: Sure its a smart thing to do for both drives.

So you bang your system and kill the drive now what? Some of your stuff may not be backed up so the info would be at risk. Even then you don't have a working drive so you need to deal with that needlessly.

Here's a way to look at it... You're on rural two lane road you could drive on either the left of right side of the road. But if you pick the wrong side you might get a surprise around the bend. This is a common issue in Ireland where mainland europeans drive on the right side of the road where they need to be on the left! — Dan
Thanks dan. Is the crash guard present Also on windows laptops? — stefano

MacBook Pro 13インチ Unibody Mid 2009

internal super drive replaced, not recognized when connected via usb

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