Space problem

Hello, before the weekend I had a problem with the Dell Storage SC7020. I ran out of space and the matrix went into service mode, which turned off all servers. The chart shows that there was a sudden increase in data over two days, around 3TB. I added the disks and everything started. I have tried to locate the data being delivered but it is nowhere to be found. Is it possible that the matrix performed some operations and took it on its own? At the moment the chart shows that the data is rising again, in our volume I have no changes.

 

After the failure, I have following warnings: 

CTL:302565 SUB:MC FNC:ProcessGPBRequest FNM:mcLDAPRequest.cpp FLN:1131 MID:0 MSG:MCLdapRequest::ProcessGPBRequest: could not read header value

CTL:302565 SUB:MC FNC:ProcessRequest FNM:mcLDAPRequest.cpp FLN:855 MID:0 MSG:MCLdapRequest::ProcessGPBRequest failed, going to ReleaseLock.

 Before the crash: 

CTL:302565 SUB:RAID MID:0 MSG:[1122005677][00.000_006_722] RAIDDevice::CREATERaidDevice:AllocateDeviceObject CREATERaidDevice[726] requestedSize[625320960] Error: Out_Of_Space

CTL:302565 SUB:RAID MID:0 MSG:[1122005672][00.000_103_928] RAIDExpand::CREATEOneDevice:CreateRaidDevice Error: Out_Of_Space