Daily server backup downs server?

[Hercules]

Yesterday my site faced some outage and while on Live Chat the BH employe told me that maybe the daily backup caused the outage.
When I browse through my bandwith stats I often see a 30-40 mins of zero bandwith (complete downtime) between 00:00 and 02:00 server time.
The BH employe also told me 'It's 3TB of data to backup daily, what else do you expect'.
Is it normal for a server to go down at least 30 mins every day for a regular backup, or is there something elso going on at box 214?

[charlesgan]

this is nightmare. That is scheduling downtime.

in fact my site is down now, error 500 in suddent.
trying to live chat, they all bz. cant get through now.

[Shonky]

Is it normal for a server to go down at least 30 mins every day for a regular backup, or is there something elso going on at box 214?

It shouldn't be normal, I know on box289 I have seen 3 outages for this month. I suspect there maybe someone running a cron job on the server that is killing the server if you are seeing the downtime at the same time in every 24 hour period.

[Time_Bomb]

this is unacceptable, ive had more problems in 4 months than i did in 2 years with ipower.