Proposed title of this feature request

  Support sizes smaller than 1x.extra-small in LOKI.

What is the nature and description of the request?

  Support the following size smaller than 1x.extra-small in LOKI.

                                             1x.new-spec
   Data transfer                             100GB/day
   Queries per second (QPS)                  1-25 QPS at 200ms 
   Replication factor                        2
   Total CPU requests                        5 vCPUs
   Total CPU requests if using the ruler     5.5 vCPUs
   Total memory requests                     20Gi
   Total memory requests if using the ruler  21Gi
   Total disk requests                       430Gi
   Total disk requests if using the ruler    450Gi

Why does the customer need this? (List the business requirements)

  Loki's current resource (CPU/Memory) requirement is too big even with extra-small.spec[1].
  It prevents existing customers from migrating their EFK to the Loki/Vector stack.
  We could lose many customers if we cannot support a less resource-intensive environment.

  [1] https://docs.openshift.com/container-platform/4.16/observability/logging/log_storage/installing-log-storage.html#installing-log-storage-loki

  Loki itself is a product that was designed to reduce resource consumption compared with EFK or other logging products.
  So it's weird why Red Hat's Loki requires more resources than EFK.
  Because Red Hat had already announced the removal of EFK[2], there is not much time to wait.

  [2] https://docs.openshift.com/container-platform/4.15/observability/logging/logging_release_notes/logging-5-9-release-notes.html#logging-release-notes-5-9-0-removal-notice

List any affected packages or components.

  Logging 6.0 / Loki