<< In RAID 5 one can loose more than only one disk RAID here will be data corruption. >> In RAID 5 if one looses more than only one disk RAID there will be data corruption.
On Mon, Mar 23, 2020 at 11:27 PM Vishal Santoshi <vishal.santo...@gmail.com> wrote: > One obvious issue is disk failure toleration . As in if RF =3 on.normal > JBOD disk failure toleration is 2. In RAID 5 one can loose more than only > one disk RAID here will be data corruption. effectively making the broker > unusable, thus reducing our drive failure toleration to 2 drives ON 2 > different brokers with the added caveat that we loose the whole broker as > well ? > > > On Mon, Mar 23, 2020 at 10:42 PM Vishal Santoshi < > vishal.santo...@gmail.com> wrote: > >> We have a pretty busy kafka cluster with SSD and plain JBOD. We >> planning or thinking of using RAID 5 ( hardware raid or 6 drive SSD >> bokers ) instead of JBID for various reasons. Hss some one used RAID 5 ( we >> know that there is a write overhead parity bit on blocks and recreating a >> dead drive ) and can share there experience on it . Confluent advises >> against it but there are obvious ease one gets with RAID ( RAID 10 is to >> expensive space wise ) .... Any advise /comments etc will be highly >> appreciated. >> >> Regards. >> >>
