Normally, tthe HDD should contain three partitions: System Reserved, Local Disk and Data. Having this 4th rescue partition I think is a bit complicated since you reached the limit of four primary partitions.
If creating more than these four, all the partitions in the HDD will be settled (and transform these four ones) in dynamic partitions. I had a similar issue in my HP laptop with two HP partitions! So, I hadn't a Data partition, but only a 600+ one for the installes system! I made a mistake and created a Data, so all partitions were transformed in dynamics. I decided to recreate all. As a result, no more rescue partitions, In case, I'm using the rescue image.
There is an other option as RAID (well, don't know much about this...
What's your partition table?
Where is that hidden restore partition settled? After the System reserved one or at the end?
In the desktop I have this partitioning table:
1 TB HDD
1. System Reserved - 200 MB
2. C: Local Disk - 175 GB
3. D: Data - 500 GB
5. NTFS volume - 100 GB (this is optional)
6. /home - 30 GB
7. swap - 4 GB
8. /(root) - PCLOS (32 bits) - 20 GB
9. / openSUSE (64 bits) - 25 GB
10. /PCLOS LXDE+XFCE - 15 GB
11. Free space
*1, 2 and 3 - Windows 7
6 - shared home partition PCLOS+openSUSE
As you see, I don't have a rescue partition since the HDD the machine came with.
In case, I'm using the repair image I made.
Maybe what I posted will help you to make an idea on what you will decide.