If Disk Utility can’t fix it then yes you’d need to erase & restore your data. HFS+ Journaled is more robust yes, normally you don’t need to reformat to enable Journaling but if the directory’s corrupt then you’d need to erase anyway.
Regards Sam <http://www.facebook.com/macambulance> <http://www.twitter.com/macambulance> <http://uk.linkedin.com/in/macambulance/> MacAmbulance Ltd. Providing Affordable Mac/PC Support and Web Development Sam Mullen ACMT +44 (0)7747778022 [email protected] <mailto:[email protected]> www.macambulance.co.uk <http://www.macambulance.co.uk/> MacAmbulance Ltd. is a registered company in England & Wales, registration number 8466597 This email is intended solely for the addressed recipients and may contain privileged or confidential information. If you have received this email in error please notify the sender and delete the email immediately. > On 31 Jul 2015, at 17:58, Benjamin Phillips <[email protected]> > wrote: > > Thanks Sam and Stephen for your input. > > Sam your are correct in your understanding of my RAID set up. 4 Western > Digital Red drives, each 4TB in capacity with the data striped across all the > disks. I chose this RAID because it gives me all the capacity with good > speeds. > > I do keep regular back ups. I use time machine to back up the internal SSD > and external array every hour. I am currently making a copy of some files > which are not included in the back up. This is because it does not matter if > I loose them but would like to keep the copy for now. This should be finished > later tonight at which point I will erase the drives and restore from the > time machine backup. At the same time I will also run a test on each > individual drive to ensure there are no hardware issues. > > When I spoke to AppleCare who told me my only option was to erase the drives > and reformat, they suggested I change for format of the drives. They are > currently Mac OS Extended and I should change this to Mac OS Extended > Journaled. Do you agree with this decision? > > Thank you for suggesting Disk Warrior. I have looked online but given this is > a paid option I don't plan to do it on this occasion. > > Many thanks for your help. > > Benjamin Phillips > > On Friday, July 31, 2015 at 5:32:59 PM UTC+1, Sam - MacAmbulance wrote: > Hi Benjamin > > Sorry just found this in my Drafts : > >> By RAID 0, do you mean all the data’s striped across all the disks? If so, >> do you have a good, regular backup? I’m assuming it’s a 4x4TB array to get >> that capacity, which means your risk of losing all the data on the array is >> multiplied by 4, if one drive goes then you lose all the data on the array. >> >> When Disk Utility fails, Disk Warrior usually wins > > Regards > > Sam > > <http://www.facebook.com/macambulance> > <http://www.twitter.com/macambulance> > <http://uk.linkedin.com/in/macambulance/> > MacAmbulance Ltd. > Providing Affordable Mac/PC Support and Web Development > > Sam Mullen ACMT > +44 (0)7747778022 > [email protected] <javascript:> > www.macambulance.co.uk <http://www.macambulance.co.uk/> > MacAmbulance Ltd. is a registered company in England & Wales, registration > number 8466597 > This email is intended solely for the addressed recipients and may contain > privileged or confidential information. If you have received this email in > error please notify the sender and delete the email immediately. > >> On 31 Jul 2015, at 07:22, Benjamin Phillips <[email protected] >> <javascript:>> wrote: >> >> Hello, >> >> I have an external 16TB raid 0 disk array connected to my iMac. For some >> reason yesterday it decided to stop communicating with the iMac. I restarted >> the computer and the hard drive did not show in the finder window. I opened >> disk utility and it showed the drive as unmounted and would not mount. >> Having left it for a while it finally showed in finder (mounted). I am able >> to open files and copy files however am unable to delete any files or save >> new files to the hard drive. Having ran repair disk it tells me incorrect >> number of thread records. The volume was found corrupt and needs to be >> repaired. Disk utility fails to repair the disk. >> >> The hard drive is used to store my documents folder, iTunes library and >> photos library containing 6.6TB of data. The disk is formatted as Mac OS >> Extended. Screenshot attached. Does anyone have any ideas how to resolve >> this issue and get the hard drive array working as normal again without >> restoring from a time machine back up. >> >> Many thanks in advance. >> >> Benjamin Phillips >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Sussex Mac User Group" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] <javascript:>. >> Visit this group at http://groups.google.com/group/smug >> <http://groups.google.com/group/smug>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. >> <Screen Shot 2015-07-31 at 07.21.25.png> > > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at http://groups.google.com/group/smug > <http://groups.google.com/group/smug>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at http://groups.google.com/group/smug. For more options, visit https://groups.google.com/d/optout.
