HDD iMAC - made NAS El Capitan trace bad sectors after the report of an error?

I replaced the HARD drive failing in my iMac 2009 end with a 4 to Seagate NAS drive, thinking it would be a better more sustainable choice, ignoring other differences of a NAS disk.  The computer runs very cool indeed.  However,.

Apparently the resumption on error and the mapping of the sector is different on a NAS drive.  Seagate advertisement indicates that during a difficult to read, the Seagate NASware reports the error to the operating system within a maximum of 7 seconds instead of spending up to 20 seconds to try to read (and remap?) the bad data so that the NAS operating system has a chance to recover data from RAID system and write a new correct sector and thus correct the file without error and little time.

Modern readers but defective sectors realloueront told me that the NAS drives will not (could not check this based on data I found on the web site of Seagate).

Three questions

1: the OS has the ability to work with bad sectors and map just like the old OSs?

2: El Capitan reports the error to the user, or turn the ball.  I never saw the report of the OS that the data file cannot be read properly, as windows used to in my old bad days before moving to Apple.

3: this rumor NAS disk does not remap is correct?  I think it makes more sense to report the erorr to the operating system, and then remap the sector on a writing data (as the NAS operating system should do once he finds the correct data).

I would not lose time popular with these basic question, but I could not find the relevant info.

I don't want to swap the drive that replacing a drive in a 27 "iMAC is not easy and will not be repeated until the disc breaks down.

A NAS is just a file server. He is responsible for the management of storage of data including the maintenance of readers. The operating system access is just request the data of and presenting data on the NAS. The inner workings of the actual storage is the responsibility of the NAS.

Tags: Mac OS & System Software

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