- #Hard disk sentinel says my drive has bad sectors drivers
- #Hard disk sentinel says my drive has bad sectors pro
- #Hard disk sentinel says my drive has bad sectors code
- #Hard disk sentinel says my drive has bad sectors Offline
Those are the count of sectors that have had problems but that have not yet been reallocated - like when you try to read from a bad sector but haven't written to it to remap it.
#Hard disk sentinel says my drive has bad sectors Offline
The other number to watch when dealing with bad sectors is Offline Uncorrectable and/or Current Pending Sector - some drives have one or the other, some have both, the mean almost the same thing. Watch that number for a while, check it before/after things like re-initializing disks - if its going up then the disk is dying, if its going up fast (more than a few a day) you probably don't have much time left. First - look at the value for Reallocated Sector Count (might not look exactly like that, my drives show as 'Reallocated_Sector_Ct' - having a couple sectors reallocated is not a problem, and I've even continued to use drives with a couple thousand reallocated sectors before as long as that number is stable. You don't need to understand the majority of it, just a couple basic things. Go grab the smart data yourself and you can see these things. If you do have bad sectors again right away, that would indicate that the drive is losing sectors at a pretty high rate which probably means a bigger problem is causing them. Re-initializing the drive is going to over-write the entire drive, which will force the HDD to remap any bad sectors it encounters during the process - afterwards you should have no bad sectors left.
#Hard disk sentinel says my drive has bad sectors code
So if you are reading from a bad sector you will get an error, but if you write to a bad sector internally the HDD will fail to write that sector, then remap one of its spares to that address and write the data there instead, and then return a success code up to the OS, so you never see bad sectors on writes. Sounds like its time to toss that drive to me.Īll HDDs keep internal spare hidden sectors that are used as replacements when other sectors go bad. I might give that a go before I configure things on the new hardware RAID and I might also go with RAID6 instead of RAID5 on this particular RAID so if both drives dies anytime soon I will have time to replace them without loosing anything. Should I be worried? I do notice that HDD Sentinel claims that doing a complete WRITE+READ or Re-Initialize disk surface might improve on the situation and restore the drives to a better health. I have filled my RAID to 98% so both drives should have been pretty much jammed-packed and I haven't had any performance or stability issues and as I mentioned above, Windows Server itself doesn't not seem to care much and reports both as healthy. I did a surface scan and they both have a few bad and damage sectors, but the number was rather low and one of the drives had most of the bad ones in a small area of the spectrum whereas the other had some issues all over. So I didn't expect anything funky when installing HDD Sentinel but I was wrong.Īccording to HDD Sentinel, two of my WD RE 2TB hard drives are at a critical low health status of 4% due to bad sectors. Windows Server 2012 R2 does report health status on hard drives that are a part of a Storage Pool and they are all reported as being Perfect / Healthy.
#Hard disk sentinel says my drive has bad sectors pro
Therefore I backuped all data and decided to download HDD Sentinel Pro 4.71 just to inspect my hard drives as they've been running 24/7 for years now and this is the perfect time to replace drives if some is bad.
#Hard disk sentinel says my drive has bad sectors drivers
Mainly because I don't have enough ports and I need more storage so I will be splitting up my RAID and adding new drivers and ended up with ordering a LSI MegaRaid 9265-8i + Intel SAS Expander. I'm about to move back to hardware RAID after using Windows Spaces / Storage Pools in Windows Server 2012 R2 for a few years now.
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