Will this drive be fine?

[Lean L]

I have a standard desktop drive running in a server. This is a 2TB Hitachi. I have a cron job that updates a webpage every hour with SMART information pulled from ESXi. This is the only way to do it since there is no hardware raid controller and I don't have vcenter. I use a free service to monitor that page and email me when anything changes.

Here is one of the emails I received:

Hitachi 2TB
Parameter Value Threshold Worst
---------------------------- ----- --------- -----
Health Status OK N/A N/A
Media Wearout Indicator N/A N/A N/A
Write Error Count N/A N/A N/A
- Read Error Count 100 16 100
+ Read Error Count 98 16 98
Power-on Hours 97 0 97
Power Cycle Count 100 0 100
Reallocated Sector Count 100 5 100
- Raw Read Error Rate 100 16 100
+ Raw Read Error Rate 98 16 98
Write Sectors TOT Count 200 0 200
Read Sectors TOT Count N/A N/A N/A
Initial Bad Block Count N/A N/A N/A

After that email, the raw read error gradually fixed itself within 3 hours. It is now back up to 100.

Is this a warning sign or am I completely in the clear? I thought the raw value was never supposed to climb back up after it drops?

 

[Cerb]

Is it in a chassis with other drives that are active?

 

[Lean L]

Yes, there is one other drive in that chassis. This has happened twice to this particular drive.

It has quite a bit of raw hours on it but not much actual use.