}
	baseAssertions := []assertion{
		{empty, empty, ""},
		{empty, revLabel, "istiod-canary"},
		{empty, objEnabled, "istiod"},
		{empty, objEnabledAndRev, "istiod-canary"},
		{revLabel, empty, "istiod-canary"},
		{revLabel, revLabel, "istiod-canary"},
		{revLabel, objEnabled, "istiod-canary"},
		{revLabel, objEnabledAndRev, "istiod-canary"},
		{legacyLabel, empty, "istiod"},
		{legacyLabel, objEnabled, "istiod"},

	if scParity < 0 {
		scParity = z.serverPools[0].defaultParityCount
	}
	rrSCParity := globalStorageClass.GetParityForSC(storageclass.RRS)

	// Data blocks can vary per pool, but parity is same.
	for i, setDriveCount := range z.SetDriveCounts() {
		b.StandardSCData = append(b.StandardSCData, setDriveCount-scParity)
		b.RRSCData = append(b.RRSCData, setDriveCount-rrSCParity)

}

// Signature will return a signature that is expected to be the same across all disks.
func (j *xlMetaV2Object) Signature() [4]byte {
	// Shallow copy
	c := *j
	// Zero fields that will vary across disks
	c.ErasureIndex = 0

	// Nil 0 size allownil, so we don't differentiate between nil and 0 len.
	allEmpty := true
	for _, tag := range c.PartETags {
		if len(tag) != 0 {
			allEmpty = false