Skip to main content
Question

HSX metadata disk RA question


Forum|alt.badge.img+5

Hello team

Have a question about HSX RA disks for Boot and Metadata

For boot i saw reccomendations Create a RAID1 volume, but 

for MetaData i didn’t see anything, jus 2 dedicated NVME\SSD disks

I’m trying find some info see below 

for Cache (CVFS/Hedvig) as i understand we use EC 4+2, so for this disk we doesnt need a RAID1 - yes or no?

for Logs (Index cache/DDB) can we used RAID for this disks or its just dedicated NVME\SSD?

 

 

and one more question whats happening if a metadata disks will go offlain or crushed in one or more nodes?

 

3 replies

R Anwar
Vaulter
Forum|alt.badge.img+10
  • Vaulter
  • 105 replies
  • June 25, 2024

Hi @Dmitriy 

For OS disk, RAID 1 can be configured.

For metadata, two disks are needed i.e. CvFS and CV(Index and DDB) in non-RAID

Data disks will be in non-RAID.

Let us know in case of any queries.

Regards,


Forum|alt.badge.img+4
  • Vaulter
  • 9 replies
  • June 25, 2024

Hi

Dmitriy wrote:

Hello team

Have a question about HSX RA disks for Boot and Metadata

For boot i saw reccomendations Create a RAID1 volume, but 

for MetaData i didn’t see anything, jus 2 dedicated NVME\SSD disks

I’m trying find some info see below 

for Cache (CVFS/Hedvig) as i understand we use EC 4+2, so for this disk we doesnt need a RAID1 - yes or no?

for Logs (Index cache/DDB) can we used RAID for this disks or its just dedicated NVME\SSD?

 

 

and one more question whats happening if a metadata disks will go offlain or crushed in one or more nodes?

 

Hi,

 

EC 4+2 for Data disk not for metadisk and you follow @R Anwar response for standard disk configuration.

 

We need standalone disk for meta data as DDB/Index can be rebuild/restored incase of anything goes wrong, so we not required disk level HA. 

 

Mani


Forum|alt.badge.img+1
  • Byte
  • 2 replies
  • October 18, 2024

Hello Team,

just a question about your suggestion “standalone disk”, very interesting;

with a disk ddb/ic size of 6T, do i need the same disk size in case of fault ? what happens if my standalone disk isn’t large enough ? could i use also other disks like data disk maybe ?

regards


Cookie policy

We use cookies to enhance and personalize your experience. If you accept you agree to our full cookie policy. Learn more about our cookies.

 
Cookie settings