Time machine error. Problem with ext HDD?

[derrickgoh]

Coincidentally or otherwise, after my Mac OS was updated to the latest version, when my Time Machine tried backing up, I get these 2 messages.

Now neither the icon for my ext HDD nor the Time Machine icon appears on my desktop.

How to solve this problem? Do I need to reformat my external HDD? If so which one because my WD MyBook Studio comprises of 2 physical drives set up as RAID 1.

 

[derrickgoh]

Anyone know how to resolve this pls?

 

[szeli]

likely yr HDD has bad sectors. check with SMART tools. or just format see if problem persists...

 

[derrickgoh]

likely yr HDD has bad sectors. check with SMART tools. or just format see if problem persists...

So i guess its HFS+ format just like my imac's HDD then. But how do i format as RAID 1? I went to WD support page & it only talks about formatting in mac os extended journalled or case sensitive journalled but nothing about option to select RAID type if any is needed.

 

[szeli]

So i guess its HFS+ format just like my imac's HDD then. But how do i format as RAID 1? I went to WD support page & it only talks about formatting in mac os extended journalled or case sensitive journalled but nothing about option to select RAID type if any is needed.

yes HFS+. not sure how e WD enclosure works. it's probably Windows only software? anyway just try formatting lor.

 

[derrickgoh]

Looks like time to get new HDD. When i tried running disk utility again it cant even run. Keeps loading. Once i unplug the HDD its ok & disk utility pops up right away.

Damn weird, yesterday can still run & first aid did not detect anything wrong. Except time machine keeps saying backing up 2.5 GB of 8 GB & after half day its still 2.5 GB

Problem now is i cant even format the external hdd before disposing cos disk utility cant even run once its plugged in!

 

[szeli]

e HDD is probably dead. u shud use a Linux live USB see if it can detect n format it as a last resort...

 

[derrickgoh]

e HDD is probably dead. u shud use a Linux live USB see if it can detect n format it as a last resort...

Crap lah regret not formatting the damn thing yesterday when disk utility could still detect it. Still thought since first aid said no problems means got hope

 

[szeli]

Crap lah regret not formatting the damn thing yesterday when disk utility could still detect it. Still thought since first aid said no problems means got hope

it's e same la. will conk out sooner or later...

 

[derrickgoh]

it's e same la. will conk out sooner or later...

At least can format it before disposing mah

 

[szeli]

At least can format it before disposing mah

just drill a few holes in it if u want to dispose...

 

[derrickgoh]

OT a little, WD & seagate are both ok brands right? For external hdd. Or is there a brand which is more reliable?

 

[szeli]

i would avoid Seagate but that's just my personal experience...

 

[derrickgoh]

i would avoid Seagate but that's just my personal experience...

Hmm thats 2 ppl who said that

 

[szeli]

Hmm thats 2 ppl who said that

Backblaze has e hard data...

https://www.backblaze.com/blog/hard-drive-benchmark-stats-2016/